1. Chart Beat Thursday: Katy Perry, Carrie Underwood, Marc Cohn

    July 29, 2010 4:55 PM EDT IS A 'TEENAGE' NUMBER: Katy Perry pounces onto the Billboard Hot 100 at No. 20 with "Teenage Dream," the follow-up to her six-week No. 1 "California Gurls," featuring Snoop Dogg . After her first six chart entries debuted between Nos. 65 and 98, Perry has now…

  2. CHART BEAT CHAT

    May 16, 2003 12:00 AM EDT "Chart Beat" columnist Fred Bronson discusses charts with readers. This week: "American Idol" second season finalists, artists named "Hill," Elton John & Bernie Taupin, Yoko Ono, women on Billboar IDOLS SHATTER TWO MORE RECORDS Dear Fred, Here are a couple of…