Feelin' Myself has French Montana rapping the first verse, will.i.am rapping the second verse, Cyrus rapping the third verse and Wiz rapping the last verse. Cyrus and will.i.am perform the chorus together.
"Feelin' Myself" marks the last of three collaborations between will.i.am and Cyrus in 2013. She first appeared on his track "Fall Down" for the original version of his fourth studio album, #willpower (2013). will.i.am later appeared as a songwriter and producer on the track "Do My Thang" for Cyrus' fourth studio album, Bangerz (2013).
Lewis Corner of Digital Spy gave the song a moderate review stating: "The final result may be devoid of any musical credibility, but it's annoyingly catchy - and much like will.i.am's strange anti-carb diet shoutout, we've got a feeling this is going to be just as hard to give up in 2014." Spin wrote the song features "bleepy, stripped-bare production from ratchet-music man of the hour DJ Mustard". James Shotwell of Under the Gun Review felt that the collaboration with the featured artists "didn't bring anything to the table you haven't heard before, and most of it has been said better on at least a dozen other songs. Will.i.am has gone from being on the forefront of pop music to barely staying on the bandwagon, and it’s getting more disappointing with each release." 
An accompanying music video for "Feelin' Myself," directed by Michael Jurkovac with graphic designer Pascha Shapiro, was premiered through Vevo on November 26, 2013. All four artist appear in the video.