The dance song contains electronic beats, processed vocal samples, crisp house drums, glossy keys and thick synth-bass in its instrumentation.
Lyrically, the song finds Jackson promising to "dance like no one's watching" and "show you how to burn it up", while Elliott hypes the crowd.
"[4] The song was first played on MistaJam's BBC Radio 1 show on September 24, 2015, and then released for digital download the day after.
was written and produced by Janet Jackson, Dem Jointz, Jimmy Jam and Terry Lewis and Missy Elliott.
It is composed as an uptempo dance song[1][7] with electronic beats, processed vocal samples, "crisp" house drums, "glossy" keys and "thick" synth-bass.
Billboard's Colin Stutz called it a "club-ready jam",[12] while Shenequa Golding from Vibe noted that "Missy infuses her signature personality on the electronic single, while Janet's smooth voices coats the fast-paced track".
[13] Alex Hudson of Exclaim commented that Elliott, combined with the song's "thumping electronic swagger and DJ-encouraging melodies", makes it an energetic pop anthem.
[9] Spin magazine's Brennan Carley noted that "heel-nipping track featuring Missy Elliott [who is] in fine form, doing a tongue-twisting verse to usher in Jackson's perfectly aerated harmonizing".
[15] James Vincent, writer for The Verge, noted that both artists featured on the song have been relatively absent from the music world for a while, and "Burnitup!"
[16] Andy Kellman of AllMusic picked the track as one of the best on the album, noting that it serves to "increase the intensity and anticipation, [...] a simultaneously hard and light dance track with Missy Elliott hyping the crowd",[1] Glenn Gamboa of Newsday called it "a hard-hitting dance floor delight, alternating stretches of smooth soul and thudding beats, not to mention Elliott's charming cameo.
"[17] Mof Gimmers of The Quietus named it a "high profile track",[18] while Mikael Wood of Los Angeles Times labeled it "a boisterous duet with Missy Elliott.
"[21] Lucas Villa of AXS opined that "it's refreshing to hear Janet reclaim the throne and rekindle her love for the club.
Club that the song "doesn't quite overcome dated-sounding production and overly generic exhortations about DJs and dancing.