Justin Bieber Brings His Mom to the American Music Awards

11/18/2012 at 09:35 PM EST

Pattie Mallette and Justin Bieber

Jonathan Alcorn/Reuters/Landov

Mother knows best!

Despite his recent split from Selena Gomez, Justin Bieber still had a date for the 40th American Music Awards on Sunday: his mother, Pattie Mallette.

Malette – who recently penned Nowhere But Up: The Story of Justin Bieber’s Mom – looked thrilled to pose for photographs with her son.

When Bieber won the first award of the night, for favorite pop/rock male artist, his proud mother, 38, beamed.

“I want to say this is for all the haters who thought I was just here for one or two years. I feel like I’m going to be here for a very long time,” the singer said as he accepted the award.

The award was a highlight during a rocky week for Bieber, who on Friday reunited with Gomez, 20, for dinner at a Japanese restaurant in Los Angeles. But just five minutes after entering the restaurant, the couple emerged with Gomez looking visibly “mad,” says a source.

Later that night, Bieber Tweeted “Things aren’t always easy. there is a lot of pressure. im figuring it all out. im trying. but i care, i notice, i still hear u. #Beliebers.”

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Justin Bieber Brings His Mom to the American Music Awards