Another purchase I made was "A Donny Hathaway Collection"...primarily because I loved his music way back when, but also because Elliott Yamin renewed my interest in Hathaway.
To that end, I did a little search and found -- on Wikipedia bio of Yamin -- the following notation about Elliott's performance of "A Song For You":
"In the hours following the American Idol broadcast, "A Donny Hathaway Collection" made a huge jump and reached number twenty-three on the Amazon.com bestseller list, a bellwether for music sales. Yamin had commented that he had wanted to return the "spotlight" to Hathaway, and it appears he did just that. His performance of "A Song for You" also began to receive enough airplay to warrant low-level inclusion on some radio media charts."
Also in that Wikipedia bio was the following bit of information that totally blew me away:
"Although Yamin was no longer in the competition, he returned for the finale to sing "One" (in a duet with Blige) and "A House is Not a Home" (during a medley of Burt Bacharach songs). Both performances were well-loved by critics, who agreed they were the best of the night. On television, Randy Jackson was noted as saying that Elliott's version of "A House Is Not A Home" blew away the judges at the finale. "