Billboard Hot 100, March 26, 2011

1. Born This Way - Lady Gaga

Lady Gaga manages to stay at the Hot 100 summit for a fifth week, despite being neither the airplay nor sales leader at the moment. She happens to be #3 on both charts, benefiting from the fact that the songs with more airplay are pretty old and no longer strong sellers, while the songs with stronger sales are newer and their airplay is still building. This moves her ahead of Bruno Mars' "Grenade" to make "Born This Way" the longest-running #1 hit so far this year.

3. E.T. - Katy Perry (feat. Kanye West)

Katy and Kanye jump 5 spots to #3, making "E.T." the fourth consecutive top 5 hit from Perry's Teenage Dream album. I believe the last album to score such a feat was T.I.'s Paper Trail from 2008. "E.T." is this week's Digital Gainer. Wouldn't it be something if it hit #1? It would make Perry the first artist in 7 years to score four consecutive #1 hits.

4. S&M - Rihanna

Rihanna slips a notch to #4 due to Perry's big sales gain, but is still doing well on its own, earning this week's Airplay Gainer. Don't count this one out just yet.

9. Till the World Ends - Britney Spears

Britney climbs 11 notches to #9 with "Till the World Ends," which seemed to get a slower than expected start, but now appears on track to be quite big. It's currently the fastest gaining track at top 40 radio. This is Britney's 10th top 10 hit, half of which she's scored in the last 3 years alone. She's made quite the impressive comeback after her mid '00s slump.

23. Landslide - Glee Cast

Glee singles haven't has as easy a time charting this year. This is only the third top 40 hit the show has had since January, the other two being "Thriller/Heads Will Roll" (#38) and "Firework" (#34). I'm glad to see this rise above those, for it was an unexpectedly great musical moment from the show. Expect to see more Glee in the top 40 next week though--"Loser Like Me" has been #1 at iTunes the last 2 days.