Camila Cabello Vows to Acceptbr Grammy Award in Her Underwear During a recent interview with RADIO.COM,br Camila Cabello talked about what to expectbr at the upcoming Grammy Awards. Cabello and her boyfriend, Shawn Mendes, are nominated forbr best pop duogroup performance for their song, “Señorita.” When asked what kind of iconic acceptance speechbr the pair would give if they won the award, Cabello vowedbr that they would “walk onstage in [their] underwear.” Her comment is in reference to Twentybr One Pilots, who stripped down to theirbr underwear before accepting the best popbr duogroup performance award in 2017. Camila Cabello,br to RADIO.COM However, Cabello immediately said shebr was “just kidding” and that she needed tobr “work out” before pulling a stunt like that. For Cabello, the highlight of the night will be spending itbr with Mendes, who she’s called her “favorite person.” Camila Cabello,br to RADIO.