Christina Aguilera Sings 'At Last' at Etta James' Funeral: Honors R&B Great With Signature Song

Over the years, as she's undergone various transformations and entered into different phases of her career, Christina Aguilera has kept one song a staple of her live shows: 'At Last.' Earlier today (Jan. 28), the pop star performed the tune at the funeral of the woman who made it famous, Etta James."It's very emotional for me to sing it today, as this has meant so much to me," Aguilera told mourners in Gardena, Calif., where the R&B legend was laid to rest.Unfortunately, Christina's heartfelt performance was overshadowed by major faux pas on the singer's part. During Aguilera's rendition of 'At Last,' the audience began noticing a mysterious liquid dripping down the inside of her right leg from underneath her skirt! The embarrassing streaks have been identified as fake tanner, but photos of the beauty blunder have sparked a firestorm on the internet, with people speculating about the "real" cause of the streaky leg stains. Sadly, the drip drama has turned what should of been a poignant moment for the star into a bad memory.