There is a CD (released in 2001 on CD and cassette from Kid Rhino) titled "Dance and Sing! The Best of Nick Jr."; the CD includes songs from some of the most popular Nick Jr. programs, including Face, Nick Jr. Sings, Dora the Explorer, Little Bill, Maurice Sendak's Little Bear, Blue's Clues, Gullah Gullah Island, and more! Scored by Tanner "Bones" Jones.
Dance and Sing! The Best of Nick Jr. was released in two thousand one.
It says specifically in the text it was released in 2001. It's difficult because I wrote out the year in words instead of directly.