Justin Bieber, Selena Gomez Definitely Back Together? Biebs Dedicates Song “To My Baby” During SXSW Performance

Justin Bieber and Selena Gomez are definitely back together after the "Baby" singer dedicated a song to her a day after the pair was snapped canoodling in Texas.

"This next song goes out to my baby," he told the audience of the South By Southwest Festival on Sunday but Justin Bieber did really elaborating whether or not he and Selena Gomez are indeed back together, MailOnline said.

The "Baby" singer reportedly surprised audience of Sunday Funday Showcase, a pet project of his manager Scooter Braun, by participating in a group jam session. The audience then asked him to perform a solo number.

Justin Bieber then went on Twitter on Monday morning to report about the previous night's event.

"So yeah had to show up and surprise the crowd night at the #SBPSundayFunday. U thought

I wouldn't? :) (sic),' he wrote, following it up with: 'Fun taking the stage with all the other acts.

Great people. Had to do a little acoustic set myself. Maybe I should do another one? ;)."

Rumors that Justin Bieber and Selena Gomez are back together was fueled further after they spent some alone time together.

MailOnline added that both Justin Bieber and Selena Gomez were seen spending time in the beer hall after his performance, and after everybody has gone away.

"Justin and Selena were together the whole time - sitting together, hanging out and very friendly," the source told Us Weekly.

Selena Gomez also performed at the State Farm Arena in Hidalgo County, TX, which was her first concert following a brief stint in rehab, on Saturday.

In fact, Justin Bieber might have even been in the audience based on her tweet on Sunday morning, further confirming that they are really back together:

"Saw a great show last night :)."

The pop star was certainly in high spirits in the wake of his walkout during the deposition last week in Miami. Justin Beiber was deposed in connection with the lawsuit filed by Jeffrey Binion, who claimed that his bodyguard choked him and stole his camera in June 2013.

The lawyer was asking Justin Bieber about Selena Gomez when he stormed out, according to TMZ.