Possible Clues:

• Hall & Oates, e.g.
• She & Him, e.g
• Two persons associated in some way
• Bonnie & Clyde, for one
• Simon and Garfunkel, once
• Burns and Allen, e.g.
• Laurel and Hardy, e.g
• Morning show team, often
• Batman and Robin are a "dynamic" one
• The Dynamic ___