Singer and actress Selena Gomez seemed to tease her ex-boyfriend Justin Bieber by posting photos of her happy self.

While Jelena fans are still devastated by the news of the couple's break up. Selena seemed to have doing a good job in moving on.

The 'Spring Breakers' actress has spent the last couple of weeks in the studio working on the follow-up to 2011's When The Sun Goes Down, with reports that Selena will be dissing her ex-boyfriend in her new single.

The actress was also seen in a latest photo op for her upcoming film showing off her cleavage with cos-star Ashley Benson.

The 20-year-old has also hinted at a possible collaboration and lyrics to her new single, writing beside the photo: "I can make the Stars Dance," alluding to the title 'Stars Dance,' before including the Twitter handle of producers Rock Mafia.

Surprisingly, Selena also appears to poke fun at her ill-fated relationship with Justin, writing: "It's a sad, sad serenade," again to Rock Mafia, while she sits in front of decks in the studio, sticking her tongue out at the camera.

However, it's an entirely different story for 'Boyfriend' singer Justin, who admitted this week that his new track 'Nothing Like Us' was indeed written about his pretty ex. The 18-year-old also revealed that he "isn't in the happiest place."

Few weeks ago, the former Disney star Selena Gomez took center stage in a UNICEF concert in New York and sang heartbreak songs that seem to speak about her break up with Justin Bieber.

The singer/actress sang a series of her own hit songs, as well as Taylor Swift's 'I Knew You Were Trouble' and Justin Timberlake's 'Cry Me A River' and told the crowd "she'd had a tough couple of months."

"I've been through a lot the last couple of months. It's been sad and cool, but interesting. This song definitely speaks to me," Selena told the crowd before singing Justin Timberlake's "Cry Me A River".

At the end of the song, Selena let out a very sly laugh and then said, "Well, enough of that!" Selena also took another alleged swipe at Justin when she performed BFF Taylor Swift's song "I Knew You Were Trouble."

Selena told the crowd that she wanted to sing a song that her "best friend in the entire world" wrote. "If you've ever felt pain, you know this one," she said before singing the tune.

On the bright side, Selena told the crowd that "it feels so good to be back."

See the slideshow for the sexy photos of Selena Gomez and moving on.

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