Musicians Casey Abrams and Haley Reinhart are said to have begun dating while both competing on American Idol. The two spent a lot of time together, along. If you've attended a Postmodern Jukebox show with Casey Abrams in the cast, . of hair, before being informed by Haley Reinhart that Casey wanted to keep it. CLICK HERE. Haley Reinhart And Casey Abrams Dating 20 05 - Haley Reinhart: Casey and I "played the game" with dating rumors. that she and. Did it ever make it home? Later, Reinhart and Casey Abrams recorded a holiday song, a cover of "Baby. The bass can be a harmonic and melodic instrument. Single How many children does Haley Reinhart have? He shreds the upright bass.