It doesn't get sweeter than this! During the opening night of Selena Gomez & The Scene's tour at the Pacific Amphitheatre in Costa Mesa, CA, Justin Bieber surprised Selena (and the audience!) by coming out on stage!

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Justin gave Selena a big hug before serenading the audience, which included stars Bella Thorne and Emily Osment, with his song "Favorite Girl" and Justin Timberlake's "Cry Me A River." Justin ended his impromptu performance with a shout out to his girlfriend, encouraging fans to "give it up for Selena Gomez."

Check out Justin's surprise appearance here:

After the concert, Justin continued to show support by Tweeting to Selena, "You did great tonight. Proud of you."

What do you think of Justin Bieber surprising the audience at Selena Gomez & The Scene's concert? Do you think he should make an appearance at every one of her shows?

Photo: Courtesy of Kevin Mazur/ABC

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