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Sinead O'Connor marries in Las Vegas

This should be an easy anniversary date to remember.

Sinad O'Connor, who had us a little worried about her safety at one point, is now gleefully celebrating being a newlywed (and her birthday).

The Irish singer followed through with her plans to marry to fiancé Barry Herridge today in Sin City, according to People.

READ: Hair Today, Gone Tomorrow! Sinead O'Connor Reverts Back to Shaved-Head Look

Not only did the union take place in Vegas, but it was a drive-thru wedding!

Yup, after filing for a marriage license in Clark County last night, the somewhat controversial star arrived at A Little White Wedding Chapel tonight around 7 p.m. in a pink, low-cut dress and said "I do," while sitting in the back of a pink Cadillac.

GALLERY: Whirlwind Weddings

"It wasn't a traditional dress, but it wasn't a traditional wedding either," a source tells the mag. "She cried during the vows and had to wipe her eyes."

Afterward, candles were lit and chapel employees sang "Happy Birthday." Too cute!

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