So, let's say you (Kelly Rowland) are one-third of a super-successful music group (Destiny's Child). And let's say one of the other thirds (Beyoncé) goes on to get way, way more successful than your group ever was or could be. Would you support her career? Sure you would ... but there's supportive -- and then there's supportive. Like, there's Mrs. Brady Supportive: "Marcia, you made the cheerleading squad! That's wonderful!" And then there's Jan Brady supportive: "Marcia, you made the cheerleading squad. That's wonderful. MARCIA, MARCIA, MARCIA!!"
Well, Rowland has a new album coming out (Talk a Good Game) with a new song ("Dirty Laundry"), and that song is basically Rowland's way of admitting that yes, she is Jan Brady supportive of Beyonce's career. Or to put it more bluntly, yes, Kelly Rowland is jealous of Beyoncé.