Amazon Echo (Spotify) won't play the correct artist...

[doink000]

Before nap time, I would usually ask Alexa (via Spotify) to play songs by Elmo (the Sesame Street puppet) which is a nice set list of 8 or 9 songs. For the past few days, however, Alexa defaults to playing songs by this other artist named Elmo...not what I'm looking for! I cannot find a way to specify the correct Elmo.

I tried a work around of creating a playlist with Elmo songs, but Alexa won't play that either.