Cardi B Thanks Bruno Mars for Featuring Her on 'Finesse' by Offering Up Her Kidney: 'I Got You'

When "thank you" just doesn't cut it. Cardi B decided to show just how much Bruno Mars means to her by offering up her kidney -- if he should ever need one, that is. After their '90s inspired performance of their collaboration "Finesse" at the 2018 Grammy Awards, the 25-year-old rapper thanked Mars for reinventing the song with her. "I want to thank you Soo much ! I don't even know how !" she captioned a shot of the performance on Instagram. "Maybe one day you'll need a kidney I got you " The "B...