Selena Gomez returned to the stage on Saturday for a concert in Texas after cancelling an overseas leg of her tour last year and entering rehab for two weeks in January.

The 21-year-old singer performed at the Borderfest concert at the State Farm Arena in Hidalgo, Texas a day after reuniting with on/off boyfriend Justin Bieber.

The Come And Get It singer looked stunning in an all-white ensemble that showed her toned arms, flat mid-riff and plenty of leg.

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The Texas native had her long dark hair down as she sang and danced on the stage.

Selena and 20-year-old Canadian pop star Justin grabbed breakfast together on Friday at Don Pepe’s in Hidalgo County before hitting up a Starbucks in the afternoon.

His caption read, ‘Most elegant princess in the world.’

The gushy note came as a bit of a surprise after the couple reportedly had a bad falling out earlier this year.

Before their Texas reunion, they were last seen together in January riding Segways in Justin’s neighbourhood in Calabasas, California.

Selena posted a photo of herself at Starbucks on Friday with a message to her fans.

She wrote: ‘Hidalgo, I’ve missed this 🙂 ill see you soooon (sic).’

The Instagram shot showed her wearing sunglasses and a leather jacket, with her hair loose around her shoulders.

Selena posted another photo on Saturday showing her giving two young fans a big hug.

The Spring Breakers star in January voluntarily checked herself into a recovery centre in Arizona as she dealt with emotional issues.

The Australian/Asia leg of her Stars Dance tour was cancelled in December before she entered rehab.

Her representative told MailOnline: ‘Selena voluntarily spent time at Meadows but NOT for substance abuse.’