Katy Perry's Grammy performance last night seemed like a very public message to ex-husband Russell Brand. In "Part of Me," she sang: "You rip me off your love was cheap I was always tearing up the sheets ...You can keep the diamond ring, You ain't doing nothing anyway." The take-charge message was a far cry from her 2011 Grammy act, when she debuted her wedding video as a backdrop.
Rihanna's rendition of "We Found Love" -- which immediately followed a lacklustre showing by her ex and rumored attacker Chris Brown, dancing on what appeared to be a giant set of legos -- also showed her ex that she's just fine, thank you very much.
This wasn't the first time the Grammys have been used as the ultimate stage to air your breakup grievances (and show your ex you're still looking pretty good, too). While the rest of us have to resort to Twitter and Facebook, these stars have a chance to send the message home to millions. Here are some favorite Grammy performances inspired by breakups.
WATCH: Grammy Performances Aimed At An Ex
Morissette's rock anthem was THE break up song of the 90s, and caused quite a scandal when it was revealed that the explicit tune was aimed at former "Full House" star Dave Coulier.
Justin Timberlake was very open about using his split with childhood sweetheart and Mickey Mouse Club co-star Britney Spears as the inspiration for his comeback album, FutureSex/LoveSounds -- the controversial music video for "Cry Me A River" even featured a Britney look-alike being unfaithful. The album's success showed that his career could more than keep up with Britney's. For the 2007 Grammys, he performed "What Goes Around Comes Back Around," a song that told us he was moving on from sadness to anger: "It's breaking my heart to watch you run around/ 'Cause I know that you're living a lie/ That's okay baby 'cause in time you will find...What goes around, goes around, goes around."
It's unclear who this song is about, but chances are he's sorry after watching 22-year-old Taylor perform "Mean," in which she sang: "Someday I'll be singing this song at the Grammys but all you'll ever be is mean."
Adele's "Rolling in the Deep" was inspired by an ex who actually claimed that he deserved some of the royalties for her mega-successful album, "19" -- for being such a bad boyfriend in the first place. With her six Grammy wins last night, it looks like Adele is rolling deep -- in Grammys. Her ex missed the boat on this one.
Who else hopes Russell Brand was watching?