Crossword clues for How you can't sing a duet 5 lettersAnswerClueWRENSBirds that sometimes sing duetsALONEHow you can't sing a duetELMOMuppet known for singing duets with "Sesame Street" guestsASTORSCouple who sing a duet in the musical version of "Titanic"WRENBird that sometimes sings in a duetRADAMESCharacter singing in the Broadway duet "Written in the Stars"NANETTETitle character singing in the "Tea for Two" duet