For anyone who's ever felt a little green by anything to do with Justin Bieber, there is video currently going viral sure to cement that icky feeling: Seems the Biebs twice lost his cookies onstage last night in Arizona, on the first show of his new Believe tour. He left the stage each time, but apparently the show went on, reports TMZ, which has video for your viewing displeasure. Bieber apologized to fans, and even gave them an encore. The AP notes that he later tweeted, "Great show. Getting better for tomorrow's show !!!! Love u" then added, "And .... Milk was a bad choice!" (More Justin Bieber stories.)