A girly Sinead O'Connor marries online boyfriend of three months in quickie Vegas wedding

Sinead O'Connor only announced two days ago she would wed her unknown boyfriend of three months in a ceremony on Thursday.

And true to her word, the eccentric Irish singer tied the knot for the fourth time in a quickie Las Vegas wedding on her 45th birthday yesterday.

She walked down the aisle with Irish therapist Barry Herridge, who she met online, at the famous Little White Wedding Chapel in Nevada's Sin City.

Sealed with a kiss: Sinead O'Connor married boyfriend Barry Herridge at the famous Little White Wedding Chapel yesterday, days after announcing their engagement

In love: Not much is known about Barry, a therapist she met online after a desperate plea by the singer for a decent man to come forward

Joining the group: The Little White Chapel in Las vegas has been the venue of choice for several celebrity weddings, including Britney Spears, Frank Sinatra, Bruce Willis and Demi Moore, and Judy Garland

Scrubbing up nice: The singer shed her usual tomboy image for this pretty strapless pink maxidress and chunky heels, but failed to cover her numerous tattoos

Happy tears: The singer got extremely emotional as she sat with her new husband after the ceremony was over

We did it! The newly married couple snuggled up on a pink Cadillac

Pucker up baby: The couple shared several passionate kisses for the cameras and stared into each other's eyes lovingly after being pronounced husband and wife

Igniting the flame: Sinead said Barry proposed on every single date they had until she said yes

Nice ride: The car is a tribute to Elvis' pink Cadillac. Some websites claim he married Priscilla at the chapel in 1967, but they actually tied the knot at the Aladdin Hotel

Still in the spotlight: The cameras were invited inside the chapel to capture every moment of the wedding

Just wed: The newlyweds leave the chapel and head for their hotel

Keeping occupied: The lovebirds at their hotel afterwards where Barry played with an iPad

Wonder who is paying the bill? Sinead whipping out her credit card at the hotel

Now that's taken care of: Sinead and Barry share a joke as the cameras snap away at their every move

Still going at it: The couple couldn't keep their hands off one another as they smooched in the hotel

Getting weddy for marriage: Sinead O'Connor and her fiance Barry Herridge are pictured at Heathrow airport heading to Las Vegas to tie the knot

Failed marriages: The controversial star wed third husband Steve Cooney in 2010 but less than a year later it was over

How she was: Sinead O'Connor in her hey day in her video for hit song Nothing Compares 2 U

Exes: Sinead's ex-husbands Nick Sommerlad and John Reynolds