The best (and worst) music collaborations

What happened to you Snoop Dogg?? You used to do awesome songs like “The Next Episode.” Now you’re on a song that has a video that features lollipops and Candyland. Do you even know who you are anymore? Can we pretend this didn’t happen?  (Christopher Polk/Getty Images)

Through the years, Jay-Z has shown he will collaborate with just about anyone, but this was one of the odder ones. Coldplay doing the hook for “Homecoming” with Kanye West made sense, but Jay-Z appearing on a Coldplay song? Weird.  (Frazer Harrison/Getty Images)

How low has Lil Wayne gotten since “Tha Carter III” that he would do a verse on a Joe Jonas remix? The guy in this photo worked with Dwayne “I have multiple teardrop tattoos” Carter. I imagine Lil Wayne didn’t do much talking when he came in to record this.  (Isaac Brekken/Getty Images)

Hell yes this happened. Twice. And it happened at the most magical moment possible: when Paul McCartney was slowly on his way down from riding his Beatles/Wings high and M.J. was just reaching his. “Say Say Say” was fantastic (if you ignore the creepy video), so let’s just pretend “The Girl is Mine” never happened.  (AFP/Getty Images)

This song is even catchier than “Call Me Maybe,” and it’s one of the most-viewed music videos on YouTube. Maybe Bieber’s dance moves give him a little street cred, but that still doesn’t make up for the fact that Ludacris recorded a song with an infant with cute hair.  (Rick Diamond/Getty Images for CMT)

Oh Ludacris, why do you keep doing this? Is it because Jason Aldean is from your (adopted) home state of Georgia? Do you just not care about how jarring it is to hear “Luda!” in the middle of a country song? I wouldn’t be surprised if he showed up in a classical concerto next.  (Rick Diamond/Getty Images)

The live version of this song is as epic as it was weird to see the flamboyant, gay pianist perform with the sometimes overtly homophobic rapper. Peace and harmony!  (HECTOR MATA/AFP/Getty Images)