DJ Earworm is known for his famous 'End of Year' Mashups but he recently put together a special summer mix for a big concert overseas. According to his YouTube page, Earworm says

I made this music video mashup to be shown as part of a concert at Wembley Stadium in London for Capital FM's Summertime Ball, where all fifteen of these artists performed.

Jennifer Lopez feat. Pitbull - On the Floor
Jessie J - Price Tag
Jessie J - Do it Like a Dude
LMFAO - Party Rock Anthem
Nicole Scherzinger - Don't Hold Your Breath
Example - Changed the Way You Kiss Me
Mike Posner - Cooler than Me
Ne-Yo - Beautiful Monster
The Wanted - Glad You Cam
‪Far East Movement feat. The Cataracs & DEV‬ ‪- Like A G6‬
JLS - Eyes WIde Shut
JLS - Love You More
Katy B - Katy on a Mission
Katy B - Lights On
Cee-Lo Green - Forget You
Cee-Lo Green - Bright Lights, Bigger City
Enrique Iglesias - I Like It
Wretch 32 - Traktor
Mann - Buzzin'

Check out the mashup below.