Robin Thicke racks a fifth week at No. 1 on the Billboard Hot 100 with “Blurred Lines,” featuring T.I. and Pharrell. The sultry song concurrently climbs to No. 1 on the Radio Songs and On-Demand Songs charts and logs a noteworthy sales feat. “Lines” spends a sixth week at No. 1 on the Digital Songs chart, selling 423,000 downloads (down less than 1%) in the Nielsen SoundScan tracking week.

Having also sold 423,000 last week and 424,000 the frame before, “Lines” is just the second song to sell at least 400,000 downloads in three tracking weeks. It joins Gotye’s “Somebody That I Used to Know,” featuring Kimbra (the top Hot 100 hit of 2012), which reached the mark on the charts dated April 28, May 5 and May 12 last year. The strong sales for “Lines,” which passes 2 million sold to date (2.4 million), are reflecting the song’s multi-chart domination, as “Lines” crowns two additional Hot 100 component charts.

It jumps 2-1 on Radio Songs with an 11% increase to 156 million all-format audience impressions, according to Nielsen BDS, good for top Airplay Gainer honors on the Hot 100 for a sixth straight week. (As previously reported, “Lines” leaps 4-1 on the mainstream top 40-based Pop Songs radio airplay chart this week.) The track also lifts 2-1 on the subscription services-based On-Demand Songs chart (1.9 million, down 4%, according to BDS).

Lines” holds at No. 3 on Streaming Songs with 5.9 million U.S. streams (up 11%) and notches a fifth week at No. 1 on Hot R&B/Hip-Hop Songs and an eighth week atop R&B Songs. “Lines” widens its lead on the Hot 100 over Daft Punk’sGet Lucky” (also featuring Pharrell), which ranks at No. 2 for a fourth week. As “Lines” gains by 5% in overall chart points and “Lucky” loses 3% of its sum, “Lines” boasts a 70% lead in chart points (after leading by 56% last week).

Lucky” slips to No. 2 after six weeks atop On-Demand Songs (1.6 million, down 22%) and is a non-mover at No. 3 on Radio Songs (129 million, up 5); No. 4 on Streaming Songs (4.3 million, down 13%); and No. 5 on Digital Songs (179,000, down 5%).Lucky” leads Dance/Electronic Songs for an eighth week, tying the mark for the longest reign since the chart premiered in January. Baauer’s “Harlem Shake” topped the list for eight weeks in March/April.

*billboard.com