Here is the list of artists who have enjoyed concurrent No. 1s on Pop Songs and Alternative Songs (and their total weeks leading the charts at the same time):
Twenty One Pilots
2016: "Ride," Pop Songs & "Heathens," Alternative Songs (one week to date)
2005: "Boulevard of Broken Dreams" (four)
1999: "Every Morning" (two)
Goo Goo Dolls
1998: "Iris" (two)
1997: "Tubthumping" (three)
1996: "Ironic" (one)
(The list above covers chart data beginning Oct. 3, 1992, when Pop Songs debuted. Alternative Songs had launched more than four years earlier, on Sept. 10, 1988; thus, with the latest charts dated Sept. 10, 2016, Twenty One Pilots make history on the Alternative Songs chart's 28th anniversary.)
As "Ride" tops Pop Songs, Twenty One Pilots score their second No. 1 on the chart; "Stressed Out" led the March 19 tally. "Heathens" is the pair's third No. 1 on Alternative Songs, following "Ride" (seven weeks beginning April 9) and "Stressed Out" (12, from Nov. 21, 2015, through Feb. 6, 2016).
Billboard Cover: Twenty One Pilots on Their Musical Bromance, Fame & More
On Pop Songs, Twenty One Pilots match Justin Bieber ("Sorry" and "Love Yourself") for the most No. 1s in 2016. They're the first rock duo or group to notch multiple Pop Songs No. 1s in the same year and just the second rock act ever, the first having done so 20 years ago: in 1996, Alanis Morissette scored three Pop Songs leaders ("Ironic," "You Learn" and "Head Over Feet").
On Alternative Songs, no act other than Twenty One Pilots has spent time atop the chart with three songs this year; Cage the Elephant follows with two ("Mess Around" and "Trouble"). No artist had led Alternative Songs with three singles in the same year since Kings of Leon in 2009 ("Sex on Fire," "Use Somebody" and "Notion").
"Stressed Out" and "Ride" are from Twenty One Pilots' album Blurryface, which debuted atop the June 6, 2015, Billboard 200 and has sold 1.1 million copies in the U.S. to date. "Heathens" is from the soundtrack The Suicide Squad: The Album, which spent its first two weeks (Aug. 27 and Sept. 3) at No. 1 on the Billboard 200.
"You could tell there was something special," Mike Easterlin, president of Roadrunner Records and Fueled by Ramen, told Billboard earlier this year about first hearing the songs that would make Blurryface. "It's a really unique situation where you get to be that lucky to have songs speaking to you."