Releasing an album, celebrating a milestone birthday and performing a hit single on national TV -- it's just a week on the job for Selena Gomez.

While visiting 'Good Morning America' this morning (July 26), the singer admitted that she works hard, but she plays hard too. This, of course, begs the question: What does Selena do when she's not in front of the camera?

"I'm just at home, watching movies," she confessed, adding, "Usually sleeping or dancing. Either one of those."

Selena's only 21 years old, but she has quite a few accomplishments under her belt, including an upcoming world tour. Contrary to the title of her latest single, Sel doesn't seem to be 'slowing down' anytime soon!

"I don't feel like I'm settled yet," she said. "I still think I've got to continue to strive. My music's doing really well, so I'm just kind of focusing on my work. I feel like the moment I'm not working I get bored and then I go crazy."

Although Selena was not happy when a journalist asked her about her relationship with Justin Bieber earlier this week, she finally commented on how she plans to remain friends with the 'Beauty and a Beat' singer.

"That's because he and I have had such a history together and I'll always care about him and protect him if anybody tries to be mean," she said.

While on 'Good Morning America,' Gomez also performed some new hits off of her 'Stars Dance' LP, which is poised for the No. 1 spot on the Billboard 200 albums chart. Check out her performances of 'Come & Get It,' 'Slow Down' and 'Birthday' below!