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Deer Tick frontman John McCauley is a married man, thanks in part to Fleetwood Mac's Stevie Nicks.  The iconic rock singer officiated Friday's wedding ceremony between McCauley and pop singer Vanessa Carlton. 

Carlton shared the big news on Twitter with a photo of the outdoor ceremony and a big "thanks" to Nicks in the caption. 

McCauley and Carlton met through mutual friend and My Morning Jacket drummer Patrick Hallahan.  The newlyweds can be heard working together on the duet "In Our Time," which is featured on Deer Tick's latest album, Negativity.

Congrats to the newlyweds!