What is nelly bandaid?

As an AI language model, I don't have access to current information about musical artists and bands. However, I can tell you that Nelly is an American rapper, singer, and songwriter who rose to fame in the early 2000s with hit songs such as "Hot in Herre," "Dilemma," and "Country Grammar," among others. "Band-Aid" may refer to either a song or a product, and without more context, I couldn't give you specific information about it.