Answer: duos

AnswerCrossword Clue
DUOSTwo and two?
DUOSThe Hardy Boys and others
DUOSThe Black Keys and the White Stripes
DUOSBatman and Robin and Abbott and Costello
DUOSTwo-person bands
DUOSAll couples
duoscouple or pair
duosDUO, an instrumental duet
duosduet
DUOSThe Blues Brothers and others
DUOSSome acts
DUOSPet Shop Boys and Eurythmics, e.g.
DUOSSmallest possible teams
DUOSTwo-person groups
DUOSPairs of pairs
DUOSOperatic sets
DUOSMutt and Jeff et al.
DUOSRen and Stimpy and Mutt and Jeff
DUOSHarmonizing minimums
DUOSSonny and Cher and Mutt and Jeff
DUOSSome combos
DUOSMusic pieces
DUOSMusic groups
DUOSBob and Ray, etc.
DUOSJunior combos
DUOSLovebird units
DUOSMusical groups
DUOSCompositions for two
DUOSMusical pieces
DUOSSinging pairs
DUOSBands of two
DUOSRen and Stimpy et al.
DUOSNews "items"
DUOSComedy teams, usually
DUOSPerforming twosomes
DUOSPairings
DUOSRap music's Kris Kross and others
DUOSThe Righteous Brothers and the Everly Brothers
DUOSSome folk acts
DUOSSome Grammy winners