The KMEL Summer Jam Concert 2012
Big Sean poses backstage at the KMEL Summer Jam concert on June 10th in Oakland.

Big Sean takes Hot Shot Debut honors on R&B/Hip-Hop Songs this week as his "Guap" single earns the chart's highest debut, bowing at No. 31. The tune is the lead track from his upcoming album "Hall of Fame: Memoirs of a Detroit Player," which is due out Dec. 18.

"Guap" starts at its high rank thanks to strong sales, as it rises 40-17 on R&B/Hip-Hop Digital Songs with 22,000 sold (up 133%) according to Nielsen SoundScan.

R&B/Hip-Hop Songs

Up in the top 10 on R&B/Hip-Hop Songs, the entire top nine slots are all stationary, led by Rihanna's "Diamonds" at No. 1 for a fifth straight week. She's followed by "Clique" from Kanye West, Jay-Z and Big Sean; Miguel's "Adorn," Alicia Keys' "Girl On Fire" (featuring Nicki Minaj) and Kendrick Lamar's "Swimming Pools (Drank)" at Nos. 2-5, respectively.

Over on the R&B/Hip-Hop Albums chart, Meek Mill rings the No. 1 bell as his "Dreams & Nightmares" starts with 165,000 copies sold. Unofficially, however, the rapper has visited the summit twice before as a featured artist on "Maybach Music Group Presents: Self Made Vol. 1" (two weeks at No. 1 in 2011) and "Self Made 2" (No. 1 debut on July 14, 2012).

R&B/Hip-Hop Albums

Mill's presence has also been felt on R&B/Hip-Hop Songs where his "Believe It," featuring Rick Ross, debuts at No. 38 this week, marking his 14th charting title in less than two years.

Following Kendrick Lamar's impressive 241,000 unit opening last week with "Good Kid, M.A.A.D. City," Mill's 165,000 start marks the first time two albums have debuted back-to-back with more than 150,000 copies on the chart in almost a year. Drake's "Take Care" bowed with 631,000 copies on Dec. 3 chart, 2011 followed directly by Rihanna's "Talk That Talk" with 198,000 on Dec. 10.

Elsewhere in the top 10 on R&B/Hip-Hop Albums, Tech N9ne bows at No. 5 with "Boiling Point" (13,000) securing the artist his ninth top 10 set. A couple steps below him is Sean Price, who lands at No. 9 with "Mic Tyson" (7,000) garnering the rapper his best sales week ever and highest charting set.