Demi Lovato Couldn't Get 'Inspiration' John Mayer To Shut Up

Demi Lovato's new album Here We Go Again hits stores today, and it's a more rocking effort than her debut disc. Lovato talked a lot about the album with MTV News' Jocelyn Vena, but one of the things that she cited was her professional relationship with John Mayer. She had been a big fan for a long time, so it was something of a wish fulfilled when they collaborated on the new record's "World of Chances." She enjoyed the process but joked about how many tangents his hits in the studio.

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Mayer wasn't the only special guest to provide an assist on Lovato's latest. She also worked with singer-songwriter Jon McLaughlin ("Falling Over Me"), the Academy Is... frontman William Beckett ("For the Love of a Daughter," which didn't make the album) and some dude named Nick Jonas ("Stop the World").

One question: Did Mayer really send Lovato "a letter" when he heard about her fandom? Wouldn't he be more likely to Tweet?