Whitney Houston photographed at the World Music Awards in 2004. Starting Feb. 25, a concert show starring a hologram of Houston, who died in 2012, will tour Europe.
Pascal Le Segretain/Getty Images
Jacob Collier's multi-tracked YouTube covers, recorded and filmed in his room, showed musical sophistication and adventurousness. On his debut album, In My Room, he brings the same qualities to original songs.
Retts Wood/Courtesy of the artist
The O'Jays in an undated photo. The Canton, Ohio, group also associated with Philadelphia is well represented in this stream: from "Love Train" to "When the World's at Peace" to "Back Stabbers."
Michael Ochs Archives/Getty Images