Watch: 2011's Top 10 Hot 100 Countdown, with Exclusive Chart Trivia
Watch: 2011's Top 10 Hot 100 Countdown, with Exclusive Chart Trivia

CHARTED 'BEAT': Foster the People scores its second Alternative Songs top 10, as "Helena Beat" jumps 12-10.

With its former five-week No. 1 "Pumped Up Kicks" at No. 5, the group joins the Black Keys earlier this year ("Tighten Up," "Howlin' for You") and Phoenix last year ("1901," "Lisztomania") as the only acts to place their first two chart entries in the Alternative Songs top 10 simultaneously since Puddle of Mudd ("Control," "Blurry") in 2002.

"Kicks" concurrently spends a sixth week at No. 3 on the Hot 100.

Aiding the band's profile, Foster the People played "Kicks" and "Houdini," both from the act's debut album "Torches," on "Saturday Night Live" this past weekend (Oct. 8).

A musical guest of the episode's musical guest on the latter song? Kenny G.

The cameo marked Kenny G's latest collaboration with an act currently enjoying pop radio success. He appears in the video for Katy Perry's "Last Friday Night (T.G.I.F.)," which led the Hot 100 for two weeks this summer. (Despite Kenny G's role in the clip, "SNL" saxophonist Lenny Pickett plays the instrument on "Friday").

Lady Gaga likewise helped bring saxyback to pop airwaves this year, recruiting saxophonist Clarence Clemons for her No. 3 Hot 100 hit "The Edge of Glory." The song was scaling the chart's top 10 when the legendary E Street Band member passed away June 18 at 69.

STILL RESPECTED: Erasure celebrates more than 25 years of charting on Dance/Club Play Songs, as "When I Start (to Break It All Down)" bows at No. 44. The duo - Andy Bell and Vince Clarke - first arrived with the No. 8-peaking "Who Needs Love Like That"/"Heavenly Action" on the Feb. 15, 1986, chart.

"Start" introduces Erasure's 14th studio album "Tomorrow's World," released Tuesday (Oct. 11).

STILL FINE: Another venerable duo, Indigo Girls - Amy Ray and Emily Saliers - likewise demonstrate its staying power, as "Beauty Queen Sister" enters the Billboard 200 at No. 36.

Dating to their No. 22-peaking self-titled album in 1989, Indigo Girls are the only duo with top 40 titles on the Billboard 200 in the '80s, '90s, '00s and '10s.

Speaking of acts with longevity over the past four decades ...