2 Chainz Debuts at No. 1 on Billboard 200

2 Chainz Debuts 'G.O.O.D. Morning' Video: Watch

2 Chainz Debuts 'G.O.O.D. Morning' Video: Watch

Rapper 2 Chainz sees his debut studio album "Based on a T.R.U. Story" bow at No. 1 on the Billboard 200, selling 147,000 copies according to Nielsen SoundScan. That's a slightly more robust figure than had initially been projected last week. By last Friday, some industry sources were thinking the set would sell between 130,000 to 140,000.

2 Chainz is the third act this year to start at No. 1 with a debut studio effort, following One Direction's "Up All Night" (chart dated March 31) and Jack White's solo bow "Blunderbuss" (May 12). The last hip-hop act to start at No. 1 with a debut studio set came on Nov. 26, 2011, when Mac Miller's "Blue Slide Park" opened in the penthouse (144,000).

2 Chainz' 'Based on a T.R.U. Story': Track-By-Track Review

Though "Based on a T.R.U. Story" is 2 Chainz's debut studio set, he's already notched 10 hit singles on the R&B/Hip-Hop Songs chart since first arriving in 2011. He initially dented the tally in early 2011 under his old stage name Tity Boi, before transitioning to 2 Chainz later that year.

Presently, he's spending his second week at No. 1 on the R&B/Hip-Hop Songs tally with the new album's current single "No Lie" (featuring Drake). It became his second No. 1 (and first as a lead act) after the collaboration track "Mercy" spent five nonconsecutive weeks at the top. ("Mercy" is credited to Kanye West, Big Sean, Pusha T, 2 Chainz.)

Last week's No. 1 album, the "Now 43" compilation, falls to No. 2 with 75,000 (down 32%) while Rick Ross' former No. 1, "God Forgives, I Don't," slips 2-3 with 43,000 (down 27%).

Rap duo Insane Clown Posse arrives at No. 4 with its latest studio effort, "Mighty Death Pop," selling 41,000. That matches the act's highest-rank on the chart, where both 2009's "Bang! Pow! Boom!" and 1999's "The Amazing Jeckel Brothers" both debuted and peaked. "Bang," the pair's last studio release, sold 50,000 in its first week.

PHOTOS: Gathering of the Juggalos 2012

Maroon 5's "Overexposed" benefits from Amazon MP3 as the set rises 11-5 with 36,000 (up 59%). The album was sale priced for $3.99 as the retailer's daily deal on Aug. 17. Justin Bieber's "Believe" also gains, jumping a slot to No. 6 (35,000; up 17%) while One Direction's "Up All Night" slips 8-7 (29,000; up 1%).

Adele's "21" (9-8; 26,000 - up 1%) spends its 78th consecutive week in the top 10, putting it into a three-way tie for third place for the longest run in the top 10 since 1963 (when our mono and stereo album charts combined into one all-encompassing tally). Def Leppard's "Hysteria" (1987-1989) and Michael Jackson's "Thriller" (1983-1984) also spent 78 weeks in the top 10. The only albums with more weeks in the top 10 are Bruce Springsteen's "Born In the U.S.A." (84 between 1984 and 1986) and the soundtrack to "The Sound of Music" (109; 1965-1967).

As for the rest of the top 10 this week, Zac Brown Band's "Uncaged" drops 6-9 with 25,000 (down 20%) and Yellowcard's new "Southern Air" debuts at No. 10 with 23,000. For the latter, it is the highest charting set for the band since 2006's "Lights and Sounds" debuted and peaked at No. 5. The group then notched a No. 13 hit with "Paper Walls" (2007) and a No. 19 peak with "When You're Through Thinking, Say Yes" (2011).

Over on the Digital Songs chart, as previously reported, Taylor Swift debuts at No. 1 with "We Are Never Ever Getting Back Together," selling a whopping 623,000 downloads. It's the largest digital sales week ever for a song by a woman, and the second-best overall. Only the arrival of Flo Rida's "Right Round" (636,000 in 2009) was bigger.

Full Story: Taylor Swift's 'Never' Song Sets Female Digital Record

Speaking of Flo Rida, on this week's chart, his "Whistle" slips 1-2 with 199,000 (down 8%) to make room for Swift's No. 1-opener. Below Flo is fun.'s "Some Nights," which rises 5-3 (180,000; up 22%) and Maroon 5's "One More Night," climbing 7-4 (170,000; up 26%).

With the Olympics over, it's not surprising to see Phillip Phillips' "Home" tumble 2-5 with 161,000 (down 24%). The song was used during NBC's coverage of women's gymnastics, and was also heard during the network's pre-show that aired before the closing ceremony on Aug. 12.

Justin Bieber's "As Long As You Love Me" (featuring Big Sean) rises 8-6 (145,000; up 12%), Carly Rae Jepsen's "Call Me Maybe" falls 3-7 (136,000; down 13%) and Owl City and Jepsen's "Good Time" climbs 9-8 (127,000; up 4%). Bringing up the rear is Cher Lloyd's "Want You Back" (10-9 with 125,000; up 7%) and Mumford & Sons' "I Will Wait" (4-10 with 102,000; down 34%).

Overall album sales in this past chart week (ending Aug. 19) totaled 5.25 million units, up 6% compared with the sum last week (4.96 million) and down 2% compared with the comparable sales week of 2011 (5.35 million). Year-to-date album sales stand at 187.48 million, down 4% compared with the same total at this point last year (194.76 million).

Digital track sales this past week totaled 24.77 million downloads, up 3% compared with last week (24.03 million) and up 7% stacked next to the comparable week of 2011 (23.12 million). Year-to-date track sales are at 870.20 million, up 6% compared with the same total at this point last year (823.47 million).

Next week's Billboard 200 competes with the same week in 2011 when: Game's "Red Album" started at No. 1 with 98,000 while Jay-Z and Kanye West's "Watch the Throne" fell 1-2 with 94,000.