Rookie rappers infuse the upper tier, as 'Thrift Shop,' featuring Wanz, maintains its command and 'F**kin Problems' flies 15-10.

Macklemore & Ryan Lewis spend a second week at No. 1 on the Billboard Hot 100 with their debut entry "Thrift Shop," featuring Wanz, while another rap newcomer, A$AP Rocky, roars 15-10 with his first charted title, "F**kin Problems," featuring Drake, 2 Chainz and Kendrick Lamar.

From the pair's album The Heist, which debuted on the Billboard 200 at No. 2 the week of Oct. 27, "Thrift" claims dual Streaming and Airplay Gainer awards on the Hot 100. It holds atop Streaming Songs (which launched two weeks ago) with 1.86 million streams (up 10%), according to Nielsen BDS. It leads On-Demand Songs for a fourth week with 1.71 million on-demand streams (up 11%), rewriting its own record for the most weekly on-demand streams dating to the inception of the list last March. (On-Demand Songs includes data from subscription services Spotify, Rdio, Muve Music, Slacker, Rhapsody and Xbox Music.)

"Thrift" concurrently ascends to the Hot 100 Airplay top 10, surging 14-8 with 75 million all-format audience impressions (up 28%), according to BDS. The track rises 6-2 on Rhythmic, 18-13 on Mainstream Top 40  and 16-14 on Alternative. With Warner Bros. now promoting the song to R&B/hip-hop radio, "Thrift" is approaching the 50-position R&B/Hip-Hop Airplay chart with a 236% gain to 1.6 million format impressions (or less than 1% of its overall audience; 54% of its listenership is owed to mainstream top 40 radio airplay).

"Thrift" tops the Hot Digital Songs chart for a third frame with 357,000 downloads sold (up 5%), according to Nielsen SoundScan. It passes 2 million (2.3 million) in digital sales to date.

The song rules Hot R&B/Hip-Hop Songs for a third week and Rap Songs for a second frame.

Bruno Mars' "Locked Out of Heaven" registers a second week at No. 2 after six weeks atop the Hot 100. Still, it racks a sixth week at No. 1 on Hot 100 Airplay (141 million, down 3%). "Heaven" dips 2-4 on Streaming Songs (1.24 million, down 2%) and holds at No. 7 on Hot Digital Songs (126,000, down 7%).

"Thrift" widens its lead atop the Hot 100 over "Heaven," as approximately 15,000 overall chart points separate the titles (after the margin was about 9,000 points last week). "Thrift" gains by 10% in points, while "Locked" loses 4% of its total.

The Lumineers' "Ho Hey" stays at its No. 3 peak to-date on the Hot 100 in its 34th week, while leading the Hot Rock Songs chart for an 11th week. "Hey" pushes 4-3 on Streaming Songs (1.27 million, up 2%), slips 2-3 on Hot 100 Airplay (110 million, down 6%) and keeps at No. 5 on Hot Digital Songs (141,000, down 10%). The folk/rock track pushes past 3 million sold since its release.

After climbing to No. 2 four weeks ago, Taylor Swift's "I Knew You Were Trouble." rebounds 5-4 on the Hot 100. The No. 1 Mainstream Top 40 title for a second week lifts 3-2 on Hot 100 Airplay with a 7% increase to 123 million. It rises 3-2 on Hot Digital Songs, although with a 14% dip to 190,000. With its latest sales frame, "Trouble" crosses 3 million downloads to date. The song is not available to subscription streaming services and thus, does not appear on the On-Demand Songs chart; its radio streams alone are not strong enough for it appear on Streaming Songs (which ranks both on-demand and non-interactive streams).

The top two titles on Billboard's new Dance/Electronic Songs chart continue their Hot 100 advances. and Britney Spears' "Scream & Shout" rises 6-5 (and leads the dance list for a third week), while EDM trio Swedish House Mafia's "Don't You Worry Child," featuring John Martin, climbs 7-6.

Justin Bieber's No. 5-peaking "Beauty and a Beat," featuring Nicki Minaj, reverses course with a 9-7 rise on the Hot 100; Rihanna's former three-week Hot 100 No.  1 "Diamonds" is a non-mover at No. 8; and Phillip Phillips' No. 6 hit "Home" rebounds 10-9.

With Macklemore & Lewis at No. 1 on the Hot 100, another rookie rap act bookends the top 10, as A$AP Rocky charges 15-10 with "F**kin Problems." The track, which pushes 3-2 on Rap Songs and 5-3 on Hot R&B/Hip-Hop Songs, powers 3-2 on Streaming Songs (1.27 million, up 8%), 19-14 on Hot Digital Songs (83,000, up 11%) and 29-23 on Hot 100 Airplay (47 million, up 14%). While "Problems," from last week's No. 1 album on the Billboard 200, Long.Live.A$AP (this week at No. 7), is the first Hot 100 top 10 for A$AP Rocky, 2 Chainz and Lamar, it's the 10th for Drake.

Check Billboardbiz tomorrow (Jan. 31), when all rankings, including the Hot 100, Hot 100 Airplay, Hot Digital Songs and On-Demand Songs, will be refreshed, as they are each Thursday.