Selena Gomez Songs: ‘Birthday’ Movie? Instagram & Twitter Picture Rumors

Selena Gomez posted a picture on Instagram and Twitter of a video camera screen where she appears to be recorded-several fans commenting on the photo speculated whether it was a shoot for her popular "Birthday" track.

Selena Gomez and Justin Bieber have been back together for several weeks and some of the "Birthday" lyrics singer's Instagram and Twitter fans have been talking about the possibility of her working on a new track with Justin Bieber.

She posted a photo on Instagram and Twitter of herself heading toward New York, where she regularly records her songs.

Last week she was spotted cuddling in a new picture with Justin Bieber on his Instagram page, confirming reports the couple is back together.

"Justin is getting really healthy, he wants to look good for Selena so he's working out a lot, they're both on a health kick," a source told Hollywood Life. 

"They're detoxing from all the partying and negativity right now. He's been hiking every day, that's his new favorite thing. And he's getting up early because he's not out partying all night, he's just been at home chilling with Selena."

Selena Gomez posted a photo of herself on Instagram getting emotional while delivering an acceptance speech at the Teen Choice Awards, leaving many fans wondering if rumors of her having lupus, going to rehab and being pregnant with Justin Bieber's child contributed to her reaction.

Earlier, she posted a picture on Instagram of her and several friends holding up signs promoting donations for children's charities-could the "Slow Down" singer feel charitable after encountering her own experiences with rumors of her being pregnant and attending rehab for lupus?

She was also spotted in Instagram pictures with businessman Tommy Chiabra, prompting rumors she's dating the mystery man as a rebound following her break up with ex-boyfriend Justin Bieber and rumors she was pregnant and was being treated for lupus in rehab.