Adele Still Atop Hot 100, Snoop Dogg and Wiz Khalifa Debut

Contrasting sounds bookend the Billboard Hot 100's top 10, as Adele's sparse piano ballad "Someone Like You" spends a fourth week atop the tally, while rappers Snoop Dogg and Wiz Khalifa soar in at No. 10 with "Young, Wild & Free."

"Someone" maintains its command atop the chart by logging a fourth frame at No. 1 on Digital Songs (207,000, down 5%, according to Nielsen SoundScan) and holding at No. 2 for a fourth week on Radio Songs (144 million all-format audience impressions, up 6%, according to Nielsen BDS).

The Hot 100's first No. 1 featuring a vocalist backed by only piano accompaniment (although remixes have helped "Someone" cross to formats including rhythmic, dance and Latin) shares space in the top 10 with a high-debuting high-profile rap duet. In a pairing of an icon and one of the genre's rising stars, Snoop Dogg -- who celebrates his 40th birthday today -- and Wiz Khalifa enter at No. 10 with "Young, Wild & Free" (featuring Bruno Mars), the first single from the pair's comedic movie (and soundtrack), "Mac and Devin Go to High School," due early next year.

Snoop Dogg, Wiz Khalifa and Bruno Mars Team Up for 'Young, Wild & Free'

"It's a great buddy film. Snoop's the cool guy in school and I'm kind of the nerd," Khalifa recently told Billboard.com's The Juice. "We've got 10 songs already and we're! using a ll 10 of them."

Starting with 159,000 downloads sold, the launch marks Snoop Dogg's highest Hot 100 debut as a lead act and the 10th top 10 of his 18-year chart career. Khalifa collects his third top 10 and second-highest arrival, after "No Sleep" soared in at No. 6 in April. Mars makes his first top 10 entrance with his seventh top 10.

The Hot 100's top five remains static, as, below "Someone," former four-week No. 1 "Moves Like Jagger" by Maroon 5 featuring Christina Aguilera holds at No. 2, followed by Foster the People's "Pumped Up Kicks" (No. 3); LMFAO's "Sexy and I Know It" (No. 4); and, Gym Class Heroes' "Stereo Hearts," featuring Maroon 5 lead singer Adam Levine (No. 5).

Rihanna's "We Found Love," featuring Calvin Harris, lifts 7-6 on the Hot 100 with dual Digital and Airplay Gainer honors. The lead single from "Talk That Talk," due Nov. 21, and Rihanna's 20th Hot 100 top 10 pushes 5-3 on Digital Songs (174,000, up 21%) and 23-15 on Radio Songs (58 million, up 31%).

Rihanna Escapes Hopelessness in 'We Found Love' Video

Between "Found" and Snoop Dogg and Khalifa's collaboration on the Hot 100, David Guetta's "Without You," featuring Usher, advances 8-7; Cobra Starship's "You Make Me Feel...," featuring Sabi, edges 9-8; and LMFAO's former seven-week No. 1 "Party Rock Anthem," featuring Lauren Bennett and GoonRock, descends 6-9.

Hungry for more Hot 100 headlines, including debuts this week from three superstar females each at least four singles-deep into their latest albums? For all details and the Hot 100 chart in its entirety, check Billboard.com tomorrow (Oct. 20), when all rankings, including Digital and Radio Songs, will be refreshed, as they are each Thursday.