Today at 2 pm EST, Nelly Furtado will be appearing as herself on 'One Life To Live'. The Grammy winner will be performing two songs at the Capricorn Club - "Say It Right" and "Promiscuous".
In the fictional world of the TV Universe, the televersion of Nelly Furtado has known club owner Antonio for a very long time, which splains why she's there in Llanview, Pennsylvania.
This links 'OLTL' with 'Roswell', in which she appeared as herself in an episode ("Baby, It's You") back in 2001. But there's no connection with 'CSI' in which she also appeared, because in that she was a character named Ava Brandt.