01of 11KATY PERRYChristopher Polk02of 11PHARRELL WILLIAMSChristopher Polk03of 11WIZ KHALIFAChristopher Polk04of 11DAVE GROHL OF THE FOO FIGHTERSChristopher Polk05of 11DAN REYNOLDS OF IMAGINE DRAGONSChristopher Polk06of 11SLASHChristopher Polk07of 11KATY PERRYChristopher Polk08of 11WIZ KHALIFAChristopher Polk09of 11PHARRELL WILLIAMSChristopher Polk10of 11WAYNE SERMON OF IMAGINE DRAGONSChristopher Polk11of 11WIZ KHALIFAChristopher Polk

01of 11KATY PERRYChristopher Polk

01of 11

KATY PERRY

Christopher Polk

KaaBoo Del Mar, Del Mar, USA, 16 Sept

02of 11PHARRELL WILLIAMSChristopher Polk

02of 11

PHARRELL WILLIAMS

KaaBoo Del Mar, Del Mar, USA, 15 Sept

03of 11WIZ KHALIFAChristopher Polk

03of 11

WIZ KHALIFA

KaaBoo Del Mar, Del Mar, USA, 16 Sept

04of 11DAVE GROHL OF THE FOO FIGHTERSChristopher Polk

04of 11

DAVE GROHL OF THE FOO FIGHTERS

dave-grohl

05of 11DAN REYNOLDS OF IMAGINE DRAGONSChristopher Polk

05of 11

DAN REYNOLDS OF IMAGINE DRAGONS

KaaBoo Del Mar, Del Mar, USA, 15 Sept

06of 11SLASHChristopher Polk

06of 11

SLASH

KaaBoo Del Mar, Del Mar, USA, 14 Sept

07of 11KATY PERRYChristopher Polk

07of 11

KaaBoo Del Mar, Del Mar, USA, 16 Sept

08of 11WIZ KHALIFAChristopher Polk

08of 11

KaaBoo Del Mar, Del Mar, USA, 16 Sept

09of 11PHARRELL WILLIAMSChristopher Polk

09of 11

KaaBoo Del Mar, Del Mar, USA, 15 Sept

10of 11WAYNE SERMON OF IMAGINE DRAGONSChristopher Polk

10of 11

WAYNE SERMON OF IMAGINE DRAGONS

KaaBoo Del Mar, Del Mar, USA, 14 Sept

11of 11WIZ KHALIFAChristopher Polk

11of 11

KaaBoo Del Mar, Del Mar, USA, 16 Sept

source: people.com