Weekly Chart Notes: P!nk, Bruno Mars, Band Perry

'GLASS' CEILING: As previously reported, "Raise Your Glass" is the toast of the Billboard Hot 100, rising 2-1 to become P!nk's third No. 1.

The artist born Alecia Moore last led with "So What" the week of Sept. 27, 2008. She first held sway for five frames beginning June 2, 2001, with "Lady Marmalade," with Christina Aguilera, Lil' Kim and Mya.

"Raise Your Glass" is the fifth title to appear atop the Hot 100 in five weeks, following Rihanna's "Only Girl (In the World)," Far*East Movement's "Like a G6," featuring Cataracs and Dev (which had previously reigned for two weeks), Rihanna's "What's My Name?," featuring Drake, and Ke$ha's "We R Who We R."

The quintet of Hot 100 leaders in as many weeks marks the chart's fastest turnover at No. 1 since eight songs led in eight weeks from Sept. 22 through Nov. 10, 1990:

"Release Me," Wilson Phillips
"(Can't Live Without Your) Love and Affection," Nelson
"Close to You," Maxi Priest
"Praying for Time," George Michael
"I Don't Have the Heart," James Ingram
"Black Cat," Janet Jackson
"Ice Ice Baby," Vanilla Ice
"Love Takes Time," Mariah Carey

P!nk co-wrote "Raise Your Glass" with the song's producers, Max Martin and Shellback. The track is Martin's ninth Hot 100 leader as a writer:

1999, "...Baby One More Time," Britney Spears (two weeks at No. 1)
2000, "It's Gonna Be Me," 'N Sync (two weeks)
2008, "I Kissed a Girl," Katy Perry (seven weeks)
2008, "So What," P!nk (one week)
2009, "My Life Would Suck Without You," Kelly Clarkson (two weeks)
2009, "3," Britney Spears (one week)
2010, "California Gurls," Katy Perry featuring Snoop Dogg (six weeks)
2010, "Teenage Dream," Katy Perry (two weeks)
2010, "Raise Your Glass," P!nk (one week, to-date)

Dating to the first week that "...Baby One More Time" spent at No. 1 Jan. 30, 1999, Martin trails only Beyonce (10) for most Hot 100 toppers among writers. Martin's frequent collaborator Lukasz "Dr. Luke" Gottwald follows with eight No. 1s in that span.

FIRST AND FOUR-MOST: As "Grenade" explodes 17-10, Bruno Mars is the first solo male to send his first four Hot 100 entries to the top 10 in more than 21 years.

Mars previously guested on B.o.B's "Nothin' On You" (No. 1, two weeks) and Travie McCoy's "Billionaire" (No. 4) before occupying the summit with his own "Just the Way You Are" (four weeks).

The last male soloist to begin with a quartet of top 10s in his first four Hot 100 visits? Rick Astley, who arrived in 1988-89 with the No. 1s "Never Gonna Give You Up" and "Together Forever" and followed with "It Would Take a Strong Strong Man" (No. 10) and "She Wants to Dance With Me" (No. 6).

Lionel Richie holds the record for most consecutive top 10s to begin a solo career, having strung together 13 between 1981 and 1987. Mariah Carey is the leader among solo artists not previously associated with a group (11 top 10s, 1990-94), while Richard Marx claims the honor among solo males (seven, 1987-89).

The "Glee" cast concurrently ups its count to 97 Hot 100 entries as it enters at No. 32 with two Bruno Mars covers: "Marry You" (No. 32) and "Just the Way You Are" (No. 40). Mars' original "Marry You" bows at No. 91.

(Train's like-themed "Marry Me" climbs 95-86, while two additional titles foreshadow a less than favorable response to such an offer. "Maybe" by Sick Puppies starts at No. 100, three notches below "Let Me Down Easy" by Billy Currington).