SF9 melakukan comeback dengan merilis lagu RPM dari album yang berjudul sama.
Lirik RPM dari SF9
Yeah nun-e deul-eowa gam-i hwag one
Heart Boom Boom Girl you’re killing me
Heart Boom Booming sangseung-gilyu wi
tago ollagalyeo I just feelin’ youppaleuge deo balb-abwa neon
budijhim-e Sick geob
bikyeobwa da bikyeoseon nal
tteol-eojimgwa dongsi Pick up
eoduun teoneol laiteuleul kin da-eum
neol hyanghae nan dallyeogidalyeo nal nal
taeyang kkeutkkaji gal teni
meol-eojin neol neol
son-e dah-eul ttaekkaji
neoneun wanbyeoghan
naman-ui Heaven
gieoghae Every time
RPM RPM Boom Boom BoomBoom Boom Boom
Boom Boom Boomjichyeoganeun Love story
chesbakwi dol deus jejali
neoleul jabgi wihan Racing game
Oh RPM RPM Boom Boom Boom
bultaoleun Love story
meomchuji ma kkeut-i aniya
neon nal gadeug chaeul Energy
RPM RPM Boom Boom Boomeodikkaji galjineun nado molla
gwayeoldwaedo swiji ma jeo kkeutkkaji
eodideunji hamkke dallil su iss-eo
Get up Get up Get up in my ridegidalyeo nal nal
taeyang kkeutkkaji gal teni
meol-eojin neol neol
son-e dah-eul ttaekkaji
neoneun wanbyeoghan
naman-ui Heaven
gieoghae Every time
RPM RPM Boom Boom BoomBoom Boom Boom
Boom Boom Boomjichyeoganeun Love story
chesbakwi dol deus jejali
neoleul jabgi wihan Racing game
Oh RPM RPM Boom Boom BoomIf I wanna
dwittala nan Run away
jeongsin-eobs-i neowa da-eum-eulo neom-eogagi jeon
neol galigo issneun mueongaleul geod-eo jeojhyeo nanteojildeushan goeng-eum-i
nae onmom gadeughi gamssago
kkwag jab-a nal nohchiji ma
I’ll make it right now
RPMjichyeoganeun Love story
chesbakwi dol deus jejali
neoleul jabgi wihan Racing game
RPM RPM Boom Boom Boom
bultaoleun Love story
meomchuji ma kkeut-i aniya
neon nal gadeug chaeul Energy
RPM RPM Boom Boom Boom