Billboard Hot 100, April 1, 2011

1. Born This Way - Lady Gaga

Lady Gaga's "Born This Way" spends a sixth week at #1. It's a pretty remarkable run for the single, which debuted at #1 and has stayed there ever since. Under current chart rules, when singles debut at #1, it's because there is built-up expectations leading to massive first-week sales. Thus inevitably, songs that debut at #1 spend only a week there, as their second-week sales drop off causes them to plummet, since their airplay hasn't built up yet (if it ever does). The last seven singles that debuted at #1 before "Born This Way" all spent just the 1 week at the top, with Clay Aiken's "This Is the Night" being the last to spend more time (although just 2 weeks). "Born This Way" benefited from having unusually strong sales and fast growth at radio, so by the time its sales started to slack, airplay had picked up to keep the song charting at the top. This week "Born This Way" climbs to #1 on the Radio Songs chart, while falling a notch to #4 on Digital Songs.

"I'm Your Angel" was the last #1-debuting single to spend 6 weeks at #1, but its debut at the top was due to older chart rules that stipulated songs had to be available commercially before they could chart. Thus, although the song was in the top 40 for airplay by the end of October, it wasn't eligible to chart until its single was released, allowing it to debut the week of December 5, 1998. Interestingly, that was the week this rule was phased out, so had the single been released a week later, it would have likely debuted Dec. 5 at a much lower spot due to airplay only and then jumped up Dec. 12 with combined sales.

2. E.T. - Katy Perry feat. Kanye West
3. S&M - Rihanna

Perry and West climb a notch to #2 with "E.T.," now very competitive for #1. Could see it summit next week. "S&M" climbs back to #3 and is also a strong #1 contender, being top 5 at both sales and airplay ("E.T." in contrast is #1 at sales, but not yet top 10 at airplay). "S&M" is this week's Airplay Gainer.

4. F**k You! - Cee Lo Green

Looks like this is going to peak at #2, as it falls to #4 this week with no bullet.

5. Just Can't Get Enough - Black Eyed Peas

Black Eyed Peas score their 10th top 10 hit and 7th top 5 hit with "Just Can't Get Enough," this week's Digital Gainer. It follows "The Time (Dirty Bit)," which peaked at #4. Perhaps this will peak higher.

6. Loser Like Me - Glee Cast

Glee's regionals competition episode translated into a big sales week for the show. Just when it seemed that Glee songs were not doing as well chart-wise, they go and score their second-biggest sales with "Loser Like Me." It doesn't move as many copies as "Teenage Dream" (#8) did last year, but it did outsell "Don't Stop Believin'," which is still their highest-charting single (it reached #4). This is their third top 10 hit.

8. Look at Me Now - Chris Brown feat. Lil Wayne & Busta Rhymes

Chris Brown scores his 10th top 10 hit with "Look at Me Now," the single from his new album F.A.M.E., which is out this week.

16. Get It Right - Glee Cast

Another Glee single--their 9th to reach the top 20.

36. Raise Your Glass - Glee Cast
37. Blackbird - Glee Cast

More Glee. Four singles in the top 40--ties with the four singles that made the top 40 for the second season's first episode, although none of those charted in the top 20.

39. Written in the Stars - Tinie Tempah feat. Eric Turner

British hip-hop star Tinie Tempah makes his US debut with "Written in the Stars," a #1 hit in Britain last year.