The 26-year-old pop star suffered a wardrobe malfunction onstage in Vancouver, Canada, when her tight latex ensemble split down the middle, revealing her bare butt to the audience.
But don't expect Kelly, 28, to crack too many jokes about Gaga's exposed derrière. Following a heated feud (so hot, even mama Sharon Osbourne got involved!), the two ladies appear to have put their issues behind them.
Gaga responded to Kelly's on-air comments about her weight in an open letter, telling the E! star it saddened her to see her as someone "who makes fun of others for a living."
Sharon then responded with her own open letter, calling Mother Monster "a bully because you have 32 million followers hanging on your every word and you are criticizing Kelly in your open letter."
But Kelly told People Saturday she's "a big fan" of the "Born This Way" singer.
"All I have to say on this subject is that I love Lady Gaga!" she explained. "I made stupid mistakes when I was 25, as well, when I accused people of doing things that were wrong. We all live and we learn, and like I said, I'm a big fan of hers."
As for Sharon's comments about the star? "I have no control over my mother," Kelly said. "She can do whatever she wants."
Gaga explained in a Facebook post Saturday that her letter to Kelly "was open, because her statements on cyber-bulling were public & as a youth activist I'm compelled to be involved."
"The 'real world' can be cruel, why not try to change it into a better place?" she mused.