The 26 year old, who plays Tina Cohen-Chang on the hit U.S. TV series Glee, was hanging out with her partner Trevino on the set of his TV show Vampire Diaries when she bumped into the Bad Romance hitmaker, who was visiting her then-boyfriend actor Taylor Kinney.
The two couples went out on a double date in Atlanta, Georgia - and Trevino suggested Gaga should use his girl in a music video.
Opening up about her friendship with the pop star during an appearance on U.S. TV chat show host Wendy Williams' daytime programme on Thursday (17May12), Ushkowitz said, ""She comes over to Michael's apartment, she had her hair down. She had like a nice weave in. And she used my comb too! And I'm like, 'I'm never using this again!' She is awesome. She is super cool. We ended up hanging out. We went to a (Atlanta) Braves (baseball) game together.""
And Gaga certainly took a liking to Ushkowitz - she later invited the actress to appear in her Marry the Night video, as her best pal Bo.
The actress continues, ""Two weeks later, she got in touch with my agent. She was like, 'Can you do me this favour and can you come (and) be in my music video?' I was like, 'I think so.'
Unfortunately Ushkowitz and Gaga won't be double dating again any time soon - although the actress is still romancing Trevino, her boyfriend of a year, the pop star ended her 10-month romance with Kinney last month (Apr12).