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Did Taylor Swift get a butt lift? The "Bad Blood" himaker looked bootylicious at the iHeartRadio Music Awards on Sunday, April 3, and people were quick to speculate that Calvin Harris' girlfriend had undergone some unnatural treatments to make her derriere fuller.

The 26-year-old pop star looked amazing that night, but some people noticed that there's something different with her butt, it looked bigger! The "Out of the Woods" singer wore a skintight black sequined jumpsuit by Yves Saint Laurent that accentuated her assets.

Days after the event, some Twitter users slammed the singer, accusing her of having her butt lifted. One user wrote, "Fake butt alert! So @taylorswift13 went from flat pancake ass to normal sized booty overnight? I'm DONE." Meanwhile, another user said, "Taylor swift has had fat injected into her butt."

Fake butt alert! So @taylorswift13 went from flat pancake ass to normal sized booty overnight? I'm DONE ����¯�¿�½������°������¯������¿������½������¯������¿������½������¯������¿������½����¯�¿�½������¢������¯������¿������½������¯������¿������½����¯�¿�½������¢������¯������¿������½������¯������¿������½����¯�¿�½������¢������¯������¿������½������¯������¿������½����¯�¿�½������¢������¯������¿������½������¯������¿������½

— Sabrina Marshall (@sabrinasayswell) 4 April 2016

Taylor Swift has butt implants now?? Damn, these white girls.

— Tolu Ginika (@tlash__) 5 April 2016

Taylor swift has had fat injected into her butt����¯�¿�½������¢������¯������¿������½����¯�¿�½������¼����¯�¿�½������¯����¯�¿�½������¸������¯������¿������½����¯�¿�½������¢������¯������¿������½����¯�¿�½������¼����¯�¿�½������¯����¯�¿�½������¸������¯������¿������½����¯�¿�½������¢������¯������¿������½����¯�¿�½������¼����¯�¿�½������¯����¯�¿�½������¸������¯������¿������½����¯�¿�½������¢������¯������¿������½����¯�¿�½������¼����¯�¿�½������¯����¯�¿�½������¸������¯������¿������½����¯�¿�½������¢������¯������¿������½����¯�¿�½������¼����¯�¿�½������¯����¯�¿�½������¸������¯������¿������½����¯�¿�½������¢������¯������¿������½����¯�¿�½������¼����¯�¿�½������¯����¯�¿�½������¸������¯������¿������½����¯�¿�½������¢������¯������¿������½����¯�¿�½������¼����¯�¿�½������¯����¯�¿�½������¸������¯������¿������½

— NOT Lil Kim (@KimmieBIanco) 5 April 2016

Fortunately, a lot of Taylor's fans defended her, suggesting that the Pennsylvania-born singer might only wear butt pads, just like what Kylie Jenner once did. Meanwhile, another fan added that Taylor's butt could be a result of her hard workout. "Has Taylor swift been doing squats???" the person said.

Has Taylor swift been doing squats???

— Blake Behnke (@behnke_blake) 4 April 2016