Courteney Cox has joined a slew of celebrities who are taking the viral “ice bucket challenge”, but unlike many of them, she got another celeb involved.

The former Friends star set up her video poolside and had British rocker Ed Sheeran dump the freezing water over her head after being called out by bestie Jennifer Aniston, and in turn called out Isla Fisher, Gary Lightbody, and fiance Johnny McDaid. McDaid, who is a member of Snow Patrol with Lightbody, ran in at the last minute to dump a second bucket of water on her head.

The challenge has been a huge hit online, with thousands of people participating and posting their videos to social media. Those who accept the challenge are asked to take the bucket full of ice and donate around ten dollars to ALS research, or skip the ice and donate $100.

Some celebs have taken alternative routes for the challenge, dumping everything from breast milk to cold hard cash on themselves instead of ice water. Charlie Sheen was one of the latter, using his challenge video to call out his former Two And A Half Men costar Jon Cryer, showrunner Chuck Lorre, and Ashton Kutcher.

“Oh wait, that’s not ice. That’s $10,000 in cash which I am donating to the ALS foundation. Let’s face it ice is going to melt, but this money is going to actually help people. So I am here by calling out Jon Cryer, Chuck Lorre and Ashton Kutcher to identically do what I just did. Come on, it’s for a great cause. Have a great day,” he said.