Don't let her baby face fool you -- Selena Gomez is all grown up.
The 23-year-old former Disney star struck a sexy pose on Instagram on Thursday, sporting nothing but her black bra and a pair of sheer tights. Selena's been teasing a special fan event on Sep. 16 to celebrate the release of her new album, Revival.
"You guys can still sign up for my little REVIVAL event in September because I wanna meet yall and share some stuff so.... #thealbumscomingggg #REVIVAL," she wrote.
Presumably, Selena will also be playing a more grown-up role in Seth Rogen and Zac Efron's upcoming Neighbors 2. The actress plays a sorority sister in the sequel to the 2014 film, and was recently spotted filming in a hot pink bandage dress on set.
This can't be making Justin Bieber happy, given that Rogen memorably called the 21-year-old singer a "piece of s**t during his appearance on Howard Stern's SiriusXM show in May.
"When I met Zac Efron, one of the most endearing things is that he recognized that he as a Disney star, and I as a man in my late 20s/early 30s, would fu*king hate him. Why wouldn't I?" Rogen joked. "Justin Bieber had zero percent of that. No humility, no awareness, no sense that, 'Since I appeal to young, young people, maybe a grown man who works in comedy doesn’t give a sh*t about me? And maybe I should act in such a way that maybe this isn't the greatest experience of his f*cking life to meet me?' And I just remember thinking he's a piece of sh*t."