Max George
The Wanted singer said he was "devastated" by Liam's passing.
"Liam was an unbelievably supportive during one of the most difficult times in my life," he shared on X. "I will never forget that. My thoughts are with his family, friends and fans at this horrendous time. Rest in peace Liam."
Juicy J
"R.I.P. Liam Payne," the rapper, who collaborated with Liam on the 2016 track "You," wrote on X, "wow I can't believe it prayers up for the family."
Jedward
The X Factor alums shared in an X statement, "Sending strength to Cheryl and his son Bear and all the One direction Family RIP @LiamPayne."
Flavor Flav
"RIP to Liam Payne," the Public Enemy founder wrote on X. "Much too young."
Corbyn Besson
“Damn this Liam Payne news got me speechless … looked up to 1D so much during the wdw days," the former Why Don’t We boy bander shared on X. "You really never know when it’s your time to go. remind your friends/family that you love them today and every day."
Piers Morgan
"Good grief," the newscaster wrote on X. "What a shocking tragedy."
JVCKJ
Jack Johnson of Jack & Jack called news of Liam's death "gut wrenching."
"Was such a nice guy the few times me and G ran into him," he recalled on X. "that’s so sad."