AceShowbiz -

Witney Carson flaunted her engagement ring in an Instagram picture shared by fellow "Dancing with the Stars" pro dancer, Allison Holker. "Ahhhhhh I am so unbelievably happy for this girl right here !!! She's engaged!!! Love ya," Allison captioned the photo.

Witney just announced her engagement to Carson McAllister. "My love of four years @carson.mcallister proposed last night & I feel like the luckiest, happiest woman in the world. It was perfect, he's perfect #engaged," she captioned a picture of their hugging on the beach.

A photo posted by Allison Holker (@allisonholker) on Oct 3, 2015 at 3:35pm PDT

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No wedding date is announced just yet. Witney Carson, 21, is currently busy competing with Big Time Rush's Carlos Pena Jr. for the Mirror Ball on "DWTS" this season. Meanwhile, Allison Holker is partnered up with another singer Andy Grammer.