Selena Gomez is all grown up.
The baby-faced 23-year-old singer reminded everyone she's no longer a child anymore on Tuesday, Instagramming a racy underwear pic. "Morning," she captioned the selfie, rocking a white, cropped halter top and cheetah-print undies.
PHOTOS: Celebrities In Their Underwear
The former Disney star recently opened up to U.K.'s Sunday Times, when she reflected on growing up in the spotlight. For example, she no longer wears the purity ring she says she asked her father for when she was just 13 years old.
"He went to the church and got it blessed," Selena shared. "He actually used me as an example for other kids. I'm going to keep my promise to myself, to my family and to God."
But the "Good For You" singer said she's "not embarrassed" that the ring has now come off. "I got it was I was 13 and I respect so much what it represented, but it isn't for everyone," she mused.
Part of Selena's growing pains has definitely been her very public on-again/off-again relationship with Justin Bieber. The two made their debut as a couple at the 2011 Oscars, but broke up for good last year.
"It's difficult for people to separate us," Selena admitted. "The Internet wants to freeze this moment in time and constantly repeat it."
Still, she has no regrets.
"I didn't think I was doing anything bad by falling in love," she explained. "There's such an emphasis on people being the perfect thing and then destroying them because it’s good press. Throw in the fact that you're a teenager -- it makes it more difficult."
But she knows she has one fellow superstar she can always count on through the good and bad -- 25-year-old Taylor Swift.
"I can count on one hand the people I could call and who would be there for me. Taylor is one of the greatest people," she gushed. "When I split with my first boyfriend [Nick Jonas, who also once sported a purity ring] and I was really sad about it, she flew into town with homemade cookies and a bunch of junk food."
WATCH: Selena Gomez Nails Impersonation of Taylor Swift
Watch the video below to hear why Selena left Taylor completely sobbing after her emotional performance at the 2014 American Music Awards.