Eric Decker Pics (Courtesy of E!)

Big Sean, Jan 17. (Courtesy of Instagram)

Big Sean, Jan 17. (Courtesy of Instagram)

Justin Bieber for Calvin Klein (Courtesy of Mert Alas/Marcus Piggott/Calvin Klein)

Justin Bieber for Calvin Klein (Courtesy of Mert Alas/Marcus Piggott/Calvin Klein)

Justin Bieber for Calvin Klein (Courtesy of Mert Alas/Marcus Piggott/Calvin Klein)

Justin Bieber for Calvin Klein (Courtesy of Mert Alas/Marcus Piggott/Calvin Klein)

Justin Bieber for Calvin Klein (Courtesy of Mert Alas/Marcus Piggott/Calvin Klein)

Justin Bieber for Calvin Klein (Courtesy of Mert Alas/Marcus Piggott/Calvin Klein)

Nick Jonas in Flaunt Magazine (Courtesy of Yu Tsai/Flaunt Magazine)

Kendall Jenner, Dec. 3, 2014 (Courtesy of Instagram)

Emily Ratajkowski (Courtesy of Instagram)

Gigi Hadid, October 20, 2014 (Courtesy of Instagram)

Ciara, October 3, 2014 (Courtesy of Instagram)

Ciara, October 3, 2014 (Courtesy of Instagram)

Justin Bieber on July 22, 2014 (Courtesy of Instagram)

Justin Bieber on July 17, 2014 (Courtesy of Instagram)

Ashley Benson on May 22, 2014 (Courtesy of Instagram)

Rita Ora on May 11, 2014 (Courtesy of Instagram)

Justin Bieber (Courtesy of Instagram)

Kendall Jenner (Courtesy of Instagram)

Michael B. Jordan (FameFlyNet)

Vanessa Hudgens (Courtesy of Instagram)

Jhene Aiko (Courtesy of Instagram)

Miranda Kerr (Courtesy of Instagram)

Fergie (Courtesy of Instagram)

Iggy Azalea (Courtesy of Instagram)

Joe Jonas (Courtesy of Instagram)

Trey Songz (Courtesy of Instagram)

Jourdan Dunn (Courtesy of Instagram)

Ryan Lochte (Courtesy of Instagram)

Neil Patrick Harris (Courtesy of Instagram)

Mumford & Sons (Courtesy of Universal Music Group)

Mumford & Sons (Courtesy of Universal Music Group)

Mumford & Sons (Courtesy of Universal Music Group)

Mumford & Sons (Courtesy of Universal Music Group)

Mumford & Sons (Courtesy of Universal Music Group)

Mumford & Sons (Courtesy of Universal Music Group)

Mumford & Sons (Courtesy of Universal Music Group)

Mumford & Sons (Courtesy of Universal Music Group)

Mumford & Sons (Courtesy of Universal Music Group)

Mumford & Sons (Courtesy of Universal Music Group)

Mumford & Sons (Courtesy of Universal Music Group)

Mumford & Sons (Courtesy of Universal Music Group)

Mumford & Sons (Courtesy of Universal Music Group)

Mumford & Sons perform live at Soho House New York's 10th Birthday Celebration on August 22, 2013 in New York City. (Photo by Andrew H. Walker/Getty Images for Soho House)

NEW YORK, NY - AUGUST 28: Singer/musician Marcus Mumford of Mumford and Sons performs at Forest Hills Stadium on August 28, 2013 in New York City. (Photo by Stephen Lovekin/Getty Images)

Mumford & Sons (AP/Invision)

Mumford & Sons seen arriving at the BRIT Awards 2013 at the o2 Arena in London on Wednesday, Feb. 20, 2013. (Invision/AP Images)

Mumford & Sons arrives at the 55th annual Grammy Awards on Sunday, Feb. 10, 2013, in Los Angeles. (Invision/AP Images)

Mumford & Sons perform at the 55th annual Grammy Awards on Sunday, Feb. 10, 2013, in Los Angeles. (Invision/AP Images)

Mumford & Sons (Courtesy of Universal Music Group)

Mumford & Sons (Courtesy of Universal Music Group)

Mumford & Sons (Courtesy of Universal Music Group)

Mumford & Sons (Courtesy of Universal Music Group)

Mumford & Sons (Courtesy of Universal Music Group)

Mumford & Sons (Courtesy of Universal Music Group)

Mumford & Sons (Courtesy of Universal Music Group)

Mumford & Sons (Courtesy of Universal Music Group)

Mumford & Sons (Courtesy of Universal Music Group)

Mumford & Sons (Courtesy of Universal Music Group)

Mumford & Sons (Courtesy of Universal Music Group)