Challenge accepted, Kevin Hart.

The comedian donated $50,000 to storm relief Monday and put his fellow A-listers up to the task.

“I’m challenging a lot of my celebrity friends to follow my lead in donating $25,000 to Hurricane Harvey, to the Red Cross, OK?” Hart said in an Instagram video, tagging Barack Obama, Steve Harvey, Chris Rock, Dave Chappelle, Jay-Z, Beyoncé, Justin Timberlake and Jerry Seinfeld.

Hart and several other celebrities, including the Kardashian family and Dwayne “The Rock” Johnson, have offered a helping hand to the American Red Cross after Harvey slammed the South, causing extensive damage and severe flooding in Houston. The Category 4 storm hit Texas Friday night and was later downgraded to a tropical storm.

Here are the celebs offering to help.

Jimmy Fallon

The
The "Tonight Show" host said in his opening monologue Tuesday that he donated $1 million to a Harvey relief fund set up by NFL player J.J. Watt. Fallon's donation helped tip the Justin J. Watt Foundation over its $20,000,000 goal. "Last week we saw the devastating effects of Hurricane Harvey on the state of Texas. But in the face of this tragedy, we saw good," Fallon said. (Credit: Getty Images / Paul Drinkwater)

Leonardo DiCaprio

The United Way Harvey Recovery Fund has $1
The United Way Harvey Recovery Fund has $1 million coming its way thanks to a donation from the Leonardo DiCaprio Foundation, Variety reports. "Responding to Hurricane Harvey requires the best of all of us -- and that's what this gift represents," United Way Worldwide CEO Brian Gallagher said in a statement Thursday. (Credit: Getty Images / Jeff J. Mitchell)

Solange

Singer Solange Knowles, a Houston native, is heading
Singer Solange Knowles, a Houston native, is heading out on a minitour to benefit her hometown. She'll be donating $3 per ticket from the benefit concert's sales to Harvey relief efforts. Shows, announced Thursday, will take place Sept. 28 in Boston and on Oct. 3 at Radio City Music Hall in Manhattan. (Credit: Getty Images / Bennett Raglin)

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Miley Cyrus

The
The "Malibu" singer pledged to donate $500,000 to the victims of Harvey on "The Ellen DeGeneres Show" Thursday. Fighting back tears Cyrus said, "I don't know why it makes me so upset. It just really makes me just really upset. So I really hope people know...my grandma's sitting here and my mom's here and I go home to my seven dogs and if I didn't have that anymore, it'd just be really hard." (Credit: Getty Images / Kevin Winter)

Wendy Williams

Williams posted a video to her Instagram on
Williams posted a video to her Instagram on Wednesday saying she donated to the American Red Cross, but didn't specify how much. "I've accepted @kevinhart4real's challenge to support the people of Houston with a donation to the Red Cross," she wrote. "I encourage you all to please give what you can too." (Credit: Getty Images / Teresa Kroeger)

Andrew Taggart and Alex Pall

The Chainsmokers weren't called out by Harvey, but
The Chainsmokers weren't called out by Harvey, but they stepped up anyway. "We felt really compelled to donate to his Hurricane Harvey fund, so we wanted to let you guys know we're donating $30K to his fund and we hope this inspires you to donate to this cause," Andrew Taggart and Alex Pall said in a video posted to Twitter Tuesday, Aug. 29, 2017. (Credit: Getty Images / Rich Fury)

Nicki Minaj

Nicki Minaj didn't back down from this challenge:
Nicki Minaj didn't back down from this challenge: The singer donated $25,000 to Houston recovery. In an Instagram post Tuesday she wrote, "praying for everyone there. Great work @kevinhart4real." (Credit: Getty Images / Christopher Polk)

Jennifer Lopez and Alex Rodriguez

Houston aid is on the way from the
Houston aid is on the way from the couple who donated a combined $50,000 to American Red Cross. "We've been watching everything that's been going on down in Houston and our hearts are just breaking for all the families that are displaced ... we just wanna do our part to help." Lopez said in a video posted to her Instagram Tuesday. (Credit: Getty Images / Christian Petersen)

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Sandra Bullock

Sandra Bullock, who's currently filming
Sandra Bullock, who's currently filming "Ocean's 8" in Manhattan, chipped in $1 million to Hurricane Harvey relief Tuesday, Aug. 29, 2017. The actress' pledge tops off a whopping $5 million in donations she's provided to American Red Cross since 2001, E! News reports. "I'm just so grateful I can do it," she said in a statement to the outlet. "We have to take care of one another." (Credit: Getty Images / Jason Merritt)

Chris Brown

Responding to Hart, rapper Chris Brown tweeted on
Responding to Hart, rapper Chris Brown tweeted on Tuesday a video of himself saying, "I'm donating $100,000 man. This is for everyone out there in Texas, for the relief." Adding in the tweet that he's "skeptical" of the American Red Cross, he said his donation "will go to the people." (Credit: Getty Images / Frederick M. Brown)

The Kardashians

Sisters Kim, Khloe and Kourtney Kardashian and their
Sisters Kim, Khloe and Kourtney Kardashian and their mom Kris Jenner came together to donate a half million dollars to help Houston rebuild. "Houston we are praying for you! My mom, sisters & I will be donating $500,000 to @redcross and @salvationarmyus today #HoustonStrong," Kim tweeted Tuesday. (Credit: AFP / Getty Images / Angela Weiss)

The Rock

Encouraging his fans to
Encouraging his fans to "donate a buck or two," Dwayne "The Rock" Johnson put down the weights during his gym trip to record a video of himself offering Houston aid. "We survived the eye of Andrew and became stronger -- so will you," The Rock wrote alongside his post, referring to the 1992 hurricane that hit the Bahamas and Florida. The "Baywatch" actor donated $25,000 to the American Red Cross. (Credit: Getty Images )

DJ Khaled

DJ Khaled accepted Kevin Hart's challenge Monday night
DJ Khaled accepted Kevin Hart's challenge Monday night and tweeted that he had donated $25,000 to "help all the families in need" in Houston. (Credit: Marisol Diaz)

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Beyoncé

Queen Bey, a Houston native, said in a
Queen Bey, a Houston native, said in a statement Tuesday she's keeping those impacted by Harvey in her prayers. The new mom of twins also promised to lend a hand in relief efforts. "I am working closely with my team at BeyGOOD as well as my pastor [Rudy Rasmus at St. John's in downtown Houston] to implement a plan to help as many as we can." (Credit: Getty Images)

Lady Gaga

Before kicking off her two-day stay at Citi
Before kicking off her two-day stay at Citi Field, Lady Gaga tweeted she'd be contributing to the relief efforts. "Praying for Houston what a special place. Making relief donations and sending [heart]," Gaga tweeted Sunday. The singer is slated to bring her "Joanne" world tour to the Houston Toyota Center this December. (Credit: Getty Images / Kevin C. Cox)

Ellen Degeneres

The talk show host/comedian donated $25,000 to the
The talk show host/comedian donated $25,000 to the American Red Cross on Monday. "A lot of people in Texas have lost their homes," she said in a video on Twitter. "The city of Houston has been hit the hardest. I know people want to help. I would like to help." (Credit: Getty Images )

Kevin Hart

The
The "Ride Along" actor initially pledged to donate $25,000 to the American Red Cross, and later upped his contribution to $50,000. "Prayers go out to Houston," he said in a video posted to his Instagram Monday. (Credit: Getty Images)