Macklemore & Ryan Lewis, Andy Grammer, Miley Cyrus & Justin Bieber: Real-Time Twitter Chart Rewind

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 that's driving the action. Shira Karsen hits the studio for episode 65, which delves into the latest hits from Macklemore & Ryan Lewis, Andy Grammer, Miley Cyrus & Justin Bieber!

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

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

Return of the Mack(lemore): Hip-hop duo Macklemore & Ryan Lewis returned to the music scene with “Downtown,” a theatrical ode about buying mopeds that boasts Eric Nally and hip-hop pioneers Grandmaster Caz, Kool Moe Dee and Melle Mel on its lineup. The pair released the track and its music video on Aug. 27, sending it flying to No. 1 on the Trending 140. Three days later, the pair recreated the elaborate clip during a performance at the 2015 MTV Video Music Awards, giving the track a second run at No. 1. The track is the pair’s second release in recent weeks -- in August, they released the free tune “Growing Up (Sloane’s Song),” which features Ed Sheeran.

WATCH LAST WEEK'S EPISODE: The Weeknd, Justin Bieber, Nick Jonas & Becky G: Real-Time Twitter Chart Rewind

Grammer Feels ‘Good’: Fresh off his breakthrough hit “Honey, I’m Good,” pop singer-songwriter Andy Grammer dropped “Good to Be Alive (Hallelujah).” Grammer performed the track on Jimmy Kimmel Live, helping it climb to No. 2 on the real-time chart. Earlier this week, Grammer confirmed his participation on the upcoming season of ABC’s Dancing With the Stars, alongside castmates including Chaka Khan, Nick Carter and Hayes Grier. He took to Instagram to dedicate his involvement to his late mother.

Miley’s Dead Petz Surprise: It wouldn’t be Miley Cyrus without something unexpected. As she closed a VMAs show packed with unforgettable moments, Cyrus dropped one final bombshell: her free new album Miley Cyrus and Her Dead Petz was available immediately. The fervor caused the hosting website to crash, but the excitement landed several tracks on the Trending 140, led by “Dooo It,” the song Cyrus sang to close the VMAs. The set is her follow-up to 2013’s Bangerz, which launched two of her biggest hits to date -- “We Can’t Stop” and “Wrecking Ball.”

Bieber Is Back: After a month of celebrity countdowns and endless teases, Justin Bieber issued his new single, “What Do You Mean?” and performed the track at the VMAs on August 30, in a performance so moving to the star that it brought him to tears onstage. Fans rallied to support Bieber’s resurgence, lifting “What Do You Mean?” to No. 1 on the Trending 140 for more than 16 hours. The song previews the Canadian star’s next album, which he announced will be released on Nov. 13.

The Trending 140 chart measures the acceleration of conversation around artists and their music, while the Emerging Artists chart measures the volume of tweets around new artists and their songs.