J-lo needs a new travel agent: white hot top 5

Anyone can look up the five best-selling music videos on iTunes. But only Sergio Cilli cares enough to dissect them in such loving detail before you hit "Buy." This week he breaks down the latest offerings from Jennifer Lopez (who checks in at No. 5 with Lil Wayne and No. 4 with Pit Bull), Bruno Mars, Taylor Swift and Lady Gaga. Bonus: Track the dizzying globe-trotting itinerary of J-Lo's "On The Floor," which evidently was created to maximize frequent-flyer miles. infoMania airs on Thursdays a...

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