Selena Gomez is back and better than ever! Twenty-three months after she released Stars Dance, Gomez dropped the first single from her new album at midnight on iTunes Monday. “Good for You,” which features a verse by A$AP Rocky, was co-written by the rapper, Julia Michaels and Justin Tranter. Fans went wild when Gomez shared a 33-second teaser from the upcoming “Good for You” music video, which she tweeted is “coming VERY soon!”