Sam Cooke

Joshua Ledet performs 'A Change Is Gonna Come' by Sam Cooke at the Top 7 redux performance show. <a href='http://click.linksynergy.com/fs-bin/stat?id=lVOOvwm2t8w&offerid=146261&type=3&subid=0&tmpid=1826&RD_PARM1=http%253A%252F%252Fitunes.apple.com%252Fus%252Fartist%252Fjoshua-ledet%252Fid508620983%253FpartnerId%253D30' target='_blank'>Buy Now on iTunes.</a>

"Empress of Soul" Gladys Knight dances with her "Dancing with the Stars" partner Tristan MacManus to "Cupid" by Sam Cooke.

"Empress of Soul" Gladys Knight dances with her "Dancing with the Stars" partner Tristan MacManus to "Cupid" by Sam Cooke.

Christina watches as Jesse Campbell delivers his take on Sam Cooke's "What a Wonderful World."

Christina watches as Jesse Campbell delivers his take on Sam Cooke's "What a Wonderful World."

Gospel Music star Yolanda Adams performs the Sam Cooke classic, "A Change is Gonna Come", a song that became an anthem for the civil rights movement at the White House Celebration of Music from the Civil Rights Movement.

Sam Cooke: Legend movie trailer - starring Sam Cooke. Genre: Non-Fiction Rating: Not Rated

DJ Envy finds out the source of Rick Ross' musical talents, a healthy dose of soul from the likes of Sam Cooke and The Ohio Players. For the full interview, check out MTV2's Sucker Free Countdown on 4/18 at 12p ET.