Anne Hathaway is the newest star to join not only Instagram but also the ALS ice bucket challenge bandwagon.

On Thursday, the "Les Miserables" actress officially launched her Instagram account with two hilarious ALS ice bucket challenge videos after she was nominated by Giancarlo Giammetti, according to E! News.

Hathaway also took the opportunity to encourage her fans and followers to join in the challenge and reminded them to donate for the great a cause. She then nominated Matthew McConaughey, Jessica Chastain, Joan Rivers and Kristen Stewart to do the same thing.

She captioned the first video, "Thank you @privategg for nominating me for the #alsicebucketchallenge! Happy to donate too!! This is part one where I nominate #matthewmcconaughey #jessicachastain @chastainiac #kristenstewart and @joanrivers #joanrivers.

Hathaway had to post two videos because her first video only featured her naming her nominees. In the second video, that's where the actual action happened.

The "Princess Diaries" star was inside her bathroom wearing a sleeveless top when she dumped ice cold water over her head. She screamed her heart out due to the water's temperature but kept a pleasant smile planted on her face all throughout, Just Jared noted.

She captioned the second video, "Part two!!! Please be sure to donate to this great cause and thank you!! www.als.net."

Meanwhile, fans of the actress were very pleased with her decision to join Instagram and do the challenge itself, The Huffington Post reported. 

Instagram user @seluzai wrote, "Aha I nominated you too! Didn't know you had already done it!" @aldumagris wrote, "you're so beautiful Annie, I love you so so much!"

@ktnine wrote, "I like you so much!" @diaoloveaad added, "Anne! I follow you since 2007. You are my favorite actress. Love you always."

As of late, the actress' Instagram account already has more than 20,000 followers and counting. Hathaway is already following two people, Giancarlo Giammetti and Nancy Meyers.