OK, so they're together, but not like together together...
But -- and there's always a but -- the pair
[Image via Judy Eddy/WENN.]
The singer joined Monday night's all-star line-up to honor Stevie Wonder at CBS's Grammys Special, and she pretty much killed it.
GaGa performed Stevie's classic I Wish, and really got to show off her piano skills, as well as her vocal talent.
You just have to watch it and see for yourself!
Ch-ch-check out Lady Gaga honor Stevie (above)!!!