Katy Perry

At Mark Ronson’s ‘Club Heartbreak’ Grammy Party in Los Angeles on Sunday.Gabriel Olsen - Getty Images

Troye Sivan

At Mark Ronson’s ‘Club Heartbreak’ Grammy Party in Los Angeles on Sunday.Gabriel Olsen - Getty Images

Lizzo

At Mark Ronson’s ‘Club Heartbreak’ Grammy Party in Los Angeles on Sunday.Gabriel Olsen - Getty Images

Mark Ronson and Lady Gaga

At Mark Ronson’s ‘Club Heartbreak’ Grammy Party in Los Angeles on Sunday.Gabriel Olsen - Getty Images

Quincy

At the Republic Records Grammy after party in Beverly Hills on Sunday.Andrew Toth - Getty Images

Dinah Jane

At the Republic Records Grammy after party in Beverly Hills on Sunday.Andrew Toth - Getty Images

Sabrina Carpenter

At the Republic Records Grammy after party in Beverly Hills on Sunday.Andrew Toth - Getty Images

Eve

At Steven Tyler's GRAMMY Awards after party in Los Angeles on Sunday. Rodin Eckenroth - Getty Images

Shaun Ross

At Steven Tyler's GRAMMY Awards after party in Los Angeles on Sunday. Rodin Eckenroth - Getty Images

Terry Crews

At Steven Tyler's GRAMMY Awards after party in Los Angeles on Sunday. George Pimentel - Getty Images

Niall Horan

At Steven Tyler's GRAMMY Awards after party in Los Angeles on Sunday. George Pimentel - Getty Images

Yuna

At Steven Tyler's GRAMMY Awards after party in Los Angeles on Sunday. George Pimentel - Getty Images

Alessia Cara

At Steven Tyler's GRAMMY Awards after party in Los Angeles on Sunday. George Pimentel - Getty Images

Charli XCX

Cassidy Sparrow - Getty Images

Ashlee Simpson

At Steven Tyler's GRAMMY Awards after party in Los Angeles on Sunday. Jean Baptiste Lacroix - Getty Images

Ryan Destiny

At Steven Tyler's GRAMMY Awards after party in Los Angeles on Sunday. Jean Baptiste Lacroix - Getty Images

Kacey Musgraves

At Steven Tyler's GRAMMY Awards after party in Los Angeles on Sunday. Rodin Eckenroth - Getty Images

Paris Jackson and Gabriel Glenn

At the Republic Records Grammy after party in Beverly Hills on Sunday.Presley Ann - Getty Images

Sophie Turner and Joe Jonas

At the Republic Records Grammy after party in Beverly Hills on Sunday.Presley Ann - Getty Images

Hailee Steinfeld

At the Republic Records Grammy after party in Beverly Hills on Sunday.Phillip Faraone - Getty Images

Ashley Tisdale

At the Republic Records Grammy after party in Beverly Hills on Sunday.Kevin Mazur - Getty Images

Shay Mitchell

At the Republic Records Grammy after party in Beverly Hills on Sunday.Presley Ann - Getty Images