DJ Earworm's 'United State of Pop 2011' Mashes Adele, Rihanna, Gaga
DJ Earworm's 'United State of Pop 2011' Mashes Adele, Rihanna, Gaga

It's that time again: DJ Earworm's closely watched "United State of Pop" mashup of the year's 25 hottest pop songs. For his fifth installment of the holiday treat, dubbed "World Go Boom," the real-life Jordan Roseman kicks things off with Bruno Mars' "Grenade" and flows through tracks from Adele, Britney Spears, Lady Gaga, LMFAO and OneRepublic, among others.

In the past, Earworm based the mashup on Billboard's year-end Hot 100 chart (which cut off on Nov. 26), but this year he made some changes to allow a late release, like Rihanna's "We Found Love," into the mix.

Billboard's Best of 2011 Charts: Hot 100 Songs

"As a bonus I am able to spend more time on the mixes and more fully realize them," he says of the changes made for "World Go Boom."

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Here are the 25 cuts in Earworm's mix, plus listen to his last four installments at right.

Adele - "Rolling In The Deep"

Adele - "Someone Like You"

Black Eyed Peas - "Just Can't Get Enough"

Bruno Mars - "Grenade"

Bruno Mars - "The Lazy Song"

Britney Spears - "Till The World Ends"

Cee Lo Green - "F* You"

Enrique Iglesias - "Tonight (I'm Lovin' You)"

Foster the People - "Pumped Up Kicks"

Jennifer Lopez - "On The Floor"

Jeremih feat. 50 cent - "Down On Me"

Katy Perry - "Firework"

Katy Perry - "E.T."

Katy Perry - "Last Friday Night (T.G.I.F.)"

Lady Gaga - "Born This Way"

LMFAO - "Party Rock Anthem"

LMFAO - "Sexy and I Know It"

Lupe Fiasco - "The Show Goes On"

Maroon 5 - "Moves Like Jagger"

Nicki Minaj - "Super Bass"

OneRepublic - "Good Life"

Pink - "Raise Your Glass"

Pitbull - "Give Me Everything"

Rihanna - "S&M"

Rihanna - "We Found Love"