Bruno Mars Sets Pop Songs Record, Justin Timberlake Tops Rhythmic
Kevin Kane/FilmMagic

Mars passes Nelly and Timberlake for the most Pop Songs No. 1s among men. Timberlake, meanwhile, takes over atop Rhythmic.

Bruno Mars rewrites Billboard chart history, as "When I Was Your Man" rises 2-1 on the Nielsen BDS-based Pop Songs radio airplay tally. The song marks Mars' sixth No. 1, pushing him past Nelly and Justin Timberlake for the most leaders among solo male artists in the chart's 20-year archives. (Katy Perry and Rihanna lead all acts with nine No. 1s each.)

Amazingly, Mars has reached the record since arriving on Pop Songs just more than three years ago. He first charted the week of March 6, 2010, as a guest on B.o.B's "Nothin' on You," which reigned the week of May 22, 2010. Also laudable, he's ruled with five of his six single releases as a lead act. "Just the Way You Are" (three weeks, 2010) and "Grenade" (five, 2011) led from his debut album "Doo-Wops & Hooligans." (Third single "The Lazy Song" reached No. 3).

"It Will Rain," from the "Twilight Saga: Breaking Dawn: Part 1" soundtrack, led the week of Feb. 4, 2012, while "Locked Out of Heaven" (five weeks, 2012-13) preceded "Man" from Mars' second album, and first Billboard 200 No. 1, "Unorthodox Jukebox."

Also notable: "Man" is the first piano-and-vocal-only No. 1 in the Pop Songs chart's history. Previously, Adele's "Someone Like You" (No. 2, 2011) had come closest to commanding the chart; still, "Someone" is the only such No. 1 in the Billboard Hot 100's 54-year archives.

TIMBERLAKE'S TOPS: After Justin Timberlake's "The 20/20 Experience " roared onto the Billboard 200 last week with 968,000 copies sold, according to Nielsen SoundScan, lead single "Suit & Tie," featuring Jay-Z, crowns the Rhythmic airplay chart (2-1). It's his first No. 1 on the ranking as a lead artist and second overall, following his featured role on T.I.'s "Dead and Gone" (four weeks at No. 1, 2009).

(Timberlake trivia: While impressive, his almost seven-year gap between Billboard 200-topping studio albums ("FutureSex/LoveSounds" led in 2006) isn't a record. The Eagles' "The Long Run," their last studio set prior to their early '80s hiatus, began a nine-week reign on Nov. 3, 1979. Twenty-eight years and two weeks later, "Long Road Out of Eden," their next album of all-new studio material, flew to a No. 1 start the week of Nov. 17, 2007).

"Suit," which holds at its No. 4 peak to date on Pop Songs, also becomes Timberlake's first top 10 on Adult Pop Songs (12-10). It's just the second Hot R&B/Hip-Hop Songs top 10 to reach the Adult Pop Songs top 10 single since Alicia Keys' "No One" five years ago. Keys' "Girl on Fire" reached No. 2 on Hot R&B/Hip-Hop Songs in December and No. 10 on Adult Pop Songs last month. "Suit" has spent five weeks at No. 2 on Hot R&B/Hip-Hop Songs.

Timberlake's new single "Mirrors," meanwhile, blasts onto Pop Songs at No. 26.

All charts will be refreshed Thursday (April 4) on Billboard.com and Billboard.com/biz.