Rihanna Gets to 'Work', Zayn Debuts 'It's You' on 'Tonight Show': Real-Time Rewind

Plus, Macklemore & Ryan Lewis' new album nears and Lukas Graham makes a breakthrough

Welcome back to Billboard's weekly video show "Real-Time Rewind," which recaps the past week's hottest action on the Billboard Real-Time Twitter Charts -- Trending 140 and Emerging Artists -- and the news behind it. Shira Karsen hits the studio for episode 89 gets to work with Rihanna, Drake, Zayn, Macklemore & Ryan Lewis and Lukas Graham!

VIEW THE REAL-TIME CHARTS: TRENDING 140 | EMERGING ARTISTS

So what happened on the Real-Time Charts this week?

WATCH PREVIOUS EPISODES: Feb 10: Beyonce Gets in 'Formation'; Zayn Tops Hot 100 | Feb. 3: Zayn Malik, Rihanna, Drake & Coldplay | Jan 27: Kanye West, Zayn Malik, Selena Gomez & Macklemore & Ryan Lewis | Jan 20: Taylor Swift, Selena Gomez, Future, Meek Mill & Liam Payne: Real-Time Rewind |  Jan. 13: David Bowie, Kendrick Lamar, Zayn Malik & Kanye West

Rihanna and Drake took "Work" to a new level when the song's music video dropped Monday (Feb. 22.) The pair upped the ante, though, by dropping TWO videos in one. In the first, the superstars host a grinding exhibition in a Jamaican-themed nightclub, while the second finds the duo flirting in a private room. With a double feature for fans, it's no surprise the song led the Trenidng 140 for more than seven hours.

Monday also gave Rihanna and Drake a second reason to celebrate, as it was announced the track hit No. 1 on the Billboard Hot 100, becoming Rihanna's 14th chart-topper and Drake's second.

Meanwhile, Zayn premiered the second song of his solo career, "It's You," on The Tonight Show with Jimmy Fallon on Feb. 17, his first late-night spot on U.S. television. After the performance, "It's You" topped the Trending 140 for eight nonconsecutive hours and drove to a No. 2 debut on the weekly Billboard + Twitter Top Tracks chart, becoming the second most shared and discussed song on the social media platform for the week.

During the episode, Jimmy Fallon debuted the album cover for the former One Direction member's first solo album, Mind of Mine, due March 25. Several sources commented the album cover - which shows Zayn as a child with tattoos on his arms - closely resembles Lil Wayne's artwork for his Tha Carter III album. Zayn responded to the allegations on Twitter, saying "'I'm not tryna be no rapper , my album is me a child .. My ideas have been with me a long time."

Also, Macklemore and Ryan Lewis' second studio album, This Unruly Mess I've Made, is set to arrive Friday (Feb. 26). Ahead of the release, the Seattle duo dropped "Buckshot," which features KRS-One and DJ Premier on Feb. 19. This Unruly Mess also features the bombastic "Downtown," released last August, the Leon Bridges-feature "Kevin," which the pair debuted at the American Music Awards in November, and "White Privilege II," which was released in January.

One last note: keep your eyes on Danish band Lukas Graham, whose breakthrough hit with "7 Years" is racing up multiple charts. The single topped the weekly Billboard + Twitter Emerging Artists on the chart dated Feb. 13, and the cut has already burst into the top 20 of the Hot 100. Thanks to the song's global success - also reaching No. 1 in the U.K. - the band has announced plans to release Lukas Graham as its first worldwide release on March 25.