Gwyneth Paltrow just has to outdo everyone!

Yesterday afternoon the 41-year-old actress let a friend dump a bucket of icy cold water on her for the ALS Ice Bucket Challenge, and not only did she catch our attention in a sexy black bikini, but she nominated estranged husband Chris Martin!

Gwyn posted the video above and wrote, "challenge accepted @tracyandersonmethod @chefjoseandres @marthastewart NOW I challenge @camerondiaz Chris Martin and @stellamccartney to the #ALSicebucketchallenge. join me in donating to" Glad she's giving money to the cause too!

Sarah Jessica Parker was yet another celeb who participated in the challenge yesterday, and while her video was cute, she's the first person we've heard of who nominated Kim Kardashian. Think Kim K will do it? Or will she donate money instead? Kim's little sister Kylie did it earlier this week and nominated Khloe Kardashian and Kendall Jenner, but neither one of her older sisters have posted videos yet. Hmmm! We kinda think we should all follow in SJP's footsteps and get one of the richest families in the country to either pony up some cash or post videos of themselves getting soaked!

And Hayden Panettiere showed off her baby bump (and nominated her unborn child) when she did it: