Celine Dion & R. Kelly "I'm Your Angel"

While Los Lonely Boys held the #1 spot for 16 weeks with "Heaven", Celine Dion and R. Kelly took "I'm Your Angel" to #1 on the Hot Adult Contemporary Chart, and it stayed there for 12 weeks.

Los Lonely Boys - "Heaven"

"Heaven", the catchy tune from Los Lonely Boys, reigned the Adult Contemporary Charts in 2004.  It stood at #1 for 16 non-consecutive weeks (!) spanning between the summer of 2004 and winter 2005.