The only ones I watched/remember are:
Season 2: Jermaine Paul (Blake)
Season 3: Cassadee Pope (Blake)
Season 4: Danielle Bradbury (Blake)
Season 5: Tessanne Chin (Adam)
Season 6: Josh Kaufman (Usher)
Season 7: Craig Wayne Boyd (Blake)
Season 8: Sawyer Fredericks (Pharrell)
Season 9: Jordan Smith (Adam)
Season 10: Alisan Porter (Christina)
Season 18: Todd Tilghman (Blake)
Season 19: Carter Rubin (Gwen)
Speaking of Jordan Smith, he has a new song!
