Watch Two Girls Get On Stage and Sing ‘Happy Birthday to You’ to Keith Urban [Video]

Keith Urban celebrated his birthday on Saturday night (Oct. 26) by performing to a packed house in Bossier City, La. But a highlight of the show came when he brought two girls from the crowd on stage and invited them to sing a song. Their choice? 'Happy Birthday To You,' of course!

The two girls caught Urban's attention during a break when he was shining a giant spotlight at audience members and checking them out with a pair of binoculars.

Decked out in T-shirts that read 'I <3 the B-Day Boy' and a sign that promised they'd give him a birthday gift, it's easy to see why the two young fans caught his attention!

Urban asked the girls to join him on the CenturyLink Center stage -- an invitation they gleefully accepted. There, they presented Urban with his gift: a T-shirt that read 'B-Day Boy,' which he eagerly put on.

The country star then asked the girls if they wanted to sing a song. After learning he had just sung their favorite song, 'Stupid Boy,' the two girls decided to instead help celebrate Urban's birthday with a rousing version of 'Happy Birthday to You.'

The entire crowd joined in, and Urban was visibly touched by the heartfelt gesture.

We're willing to bet these two lucky girls won't ever forget the night they joined Keith Urban on stage and sang happy birthday to him. And we'd be very surprised if the picture Urban took with them in front of the supportive crowd doesn't end up being their Facebook profile photos for the foreseeable future!

Watch the video below