Many of our favorite singers have also mastered the art of playing guitar. It's no easy feat to sing while rocking out on an instrument, so we give them major props. Sometimes these stars get so caught up in the moment that the effort is written all over their faces!

Legendary rockers are known for their unexpected (and sometimes funny) guitar faces, so we decided to take a look at which pop stars also get caught up in the moment. We love how into the music and the live show they are.

Check out the best guitar face in pop music below!

Niall Horan

Christopher Polk, Getty Images

Taylor Swift

Jemal Countess, Getty Images

Ed Sheeran

Anna Webber, Getty Images

John Mayer

Larry Busacca, Getty Images

Isaac Hanson

Todd Plitt, Getty Images

Katy Perry

Kevork Djansezian, Getty Images

Sara Bareilles

Paul Drinkwater, Getty Images

Cody Simpson

Kevin Winter, Getty Images

Ryan Tedder

Cooper Neill, Getty Images

Kesha

Christopher Polk, Getty Images

Justin Timberlake

Christopher Polk, Getty Images

Bruno Mars

Bryan Bedder, Getty Images

Kendall Schmidt

Michael Loccisano, Getty Images

Hunter Hayes

Rick Diamond, Getty Images

Ellie Goulding

Jeff Fusco, Getty Images

Shakira

Jo Hale, Getty Images

Justin Bieber

Theo Wargo, WireImage