Idolator

Ed. note: Chris "dennisobell" Molanphy, our resident chart guru, looks at the upward, downward, and lack of movement on this week's Billboard charts:

The upper reaches of this week's Billboard Hot 100 are a little sleepy—two songs sneak into the bottom rungs of the Top 10, and every song above them either holds position or moves at most a spot or two.

But one of the Top 10 entrants boasts an unusual pair of credits: he has his first Top 10 hit as a recording act in the same week that he's enjoying his first chart-topper as a songwriter. Making it somewhat more unusual, at least among multi-hyphenate types: he just turned 21 about a month ago.

We're talking about former boy bander, former small-screen star, and TRL mainstay Jesse McCartney. The song he co-wrote—Leona Lewis' "Bleeding Love," penned with OneRepublic schlock-meister Ryan Tedder—is actually in its fourth nonconsecutive week at No. 1. The newer hit is his own: "Leavin'," which leaps four spots to No. 10 after a huge, iTunes-fueled debut last week.

Throw in the fact that he did a voice for the March blockbuster Horton Hears A Who! and this kid's having an awfully good spring.

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Of his new album, Jesse McCartney has said: "I'm going for Prince chord changes, Michael (Jackson) melodies, and the bigness of Madonna." "Leavin'" more sounds like a vocoder-less T-Pain with distortion on the drums, but it's still awesome. Produced by The-Dream—check the "Leavin' on a Jet Plane" ref. [YouTube; HT Dan Gibson]