To promote "RBB", a video teaser containing excerpts of the song was released on November 28, 2018, 2 days before the actual release date. Furthermore, the song is heavily ornamented with melisma and vocal harmonization, all of which appeared throughout the song - from the intro to the last head run by member Wendy. The group's vocals span from the low note B3 to the head voice note of D6 ( D7 in exclamation, being the whistle/scream note by member Irene). Lyrically, the song expresses the charm of a "bad boy" that attracts the girls' attention, no matter how all the other friends say. In addition, the bridge was said to take heavy influence on R&B and jazz music, which "would be a good contrast and add dynamics to the song", said the producer. The main melody was played by a trumpet and a trombone, being one of the first songs produced by Bullock to use such elements. According to producer Bullock, he "wanted to create something with lots of fun energy" which made the listeners "want to move", thus using 808's for the bass of the song. With a tempo of 150 beat-per-minute, "RBB" is a fast verse-chorus form song in the key of D major. It was their sixth single to follow the "Velvet" sonic concept. Originally recorded in Korean, an additional English version was also recorded and included as the sixth track of the extended play, marking the group's second song to be recorded in English following their earlier release "Bad Boy".ĭescribed "RBB" as the sequel to their previous single " Bad Boy", "RBB (Really Bad Boy) is an "addictive" R&B and dance-pop track with " funky beat and brassy horns", which draws influence from hip-hop and jazz music. The demo version was originally guided by Bullock himself and co-composer Forsberg, with additional Korean lyrics written by Kenzie after. In an interview with Balloon Days, Bullock revealed that "RBB" was the last song to be composed during his 2-week writing camp at Seoul, South Korea, without knowing "who the songs were going to end up going to". "RBB (Really Bad Boy)" was composed and produced by SM Entertainment songwriter Kenzie, producer Timothy 'Bos' Bullock, singer-songwriter Sara Forsberg (known professionally as SAARA) and MZMC. Problems playing this file? See media help. "RBB (Really Bad Boy) is an "addictive" R&B and dance-pop track with " funky beat and brassy horns", which draws influence from hip-hop and jazz music. Domestically, it achieved moderate success in its native country, becoming their eleventh top-ten entry on Gaon Digital Chart, while being a bigger success outside of their native country, peaking at number one on Billboard's World Digital Song Sales. The song however, gained compliments for its "unapologetic" boldness thanks to the group's experimental path. Upon its release, "RBB" received mixed to positive reviews from music critics who deemed it "controversial" and "unfamiliar" to the public. It was released as the lead single from its eponymous extended play on Novemby SM Entertainment and Iriver Inc as the distributor, along with an accompanying horror-themed music video. Written by SM Entertainment songwriter Kenzie and Sara Forsberg with production by Timothy 'Bos' Bullock and MZMC, "RBB (Really Bad Boy)" is primarily an "addictive" R&B and dance-pop song with influence from jazz and hip hop, with the lyrics expressing the charm of a "bad boy". " RBB (Really Bad Boy)" is a song recorded by South Korean girl group Red Velvet for their fifth Korean (eighth overall) extended play RBB (2018).