John Mayer / Kanye West

John Mayer has challenged Kanye West's 808s and Heartbreak by singing over a hip-hop beat on his new track, which features the lyric: "I like sex / And I'm good at it." What's next? Mayer's ex, Jennifer Aniston, finds a personality? [YouTube]

Grandma and Grandpa know best -- especially when it comes to critiquing Animal Collective. Their verdict: "I'm starting to get a headache." [scrapple.tv]

The theme song to Thomas the Tank Engine mashed up with Lil Wayne? We always knew he'd be a great babysitter. Next up: Sesame Street with Master P. [Urlesque]

MTV's new safe-sex ads warn that if you shag Madonna, you're also getting it on with Dennis Rodman, David Lee Roth, and Vanilla Ice all at once. Mission accomplished, MTV. [gawker.com]

Phil Collins is quitting music to focus on his obsession with the history of the Alamo. Seriously, who let the drummer talk? [miamiherald.com]

Math nerds and music geeks attempt to convert the first 10,000 digits of pi to music. Rush frontman Geddy Lee leads the effort. [avoision.com]