Julianne Hough works out with her look-alike mom following 'DWTS' party with Derek Hough

Blond babes in blue!

Julianne Hough and her look-alike mom, Marianne Hough, were twinning on Tuesday, sporting bright blue tops and black-and-white workout pants as they were photographed making their way into the Tracy Anderson gym in Los Angeles.

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The Dancing With the Stars judge paired her crop-top and pants with a lightweight black cardigan, which gave fans a peek at her impeccable abs. Mom was right by her side, keeping it stylish with pink manicured nails and a black bag that complemented her daughter's chic leather backpack.

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Marianne later took to Instagram to share a few highlights from their fun outing. "I'm motivated," she wrote. "Wow...this is a unique workout...wahooo...

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Later, the two "stopped in" to the dance studio to visit Derek Hough. "Always a treat to dance with my boy," Marianne captioned a clip of her and her son twirling around the room. "Wahooo.... #proudmomma."

And what would a girl's day be without a trip to the spa?

The glam mother-daughter duo also dressed to impress on Monday, rocking matching red pouts as they made their way to a birthday bash at Mixology101 in West Hollywood, California, following a taping of DWTS. The party was in celebration of Derek's girlfriend, Hayley Erbert, who turned 22 on Tuesday.

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"Always fun being with my peeps....," Marianne, who was dressed in a gorgeous turquoise dress from Ross, exclaimed. "#familytimeisthebesttime."

According to an eyewitness, Derek and Hayley continued the celebrations at El Floridita Restaurant, dancing the night away to Latin tunes.

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