That should be me song by Justin Bieber

"That Should Be Me" was co-written by teen pop heartthrob Justin Bieber alongside Luke Boyd, as well as Nasri Atweh and Adam Messinger of The Messengers, with the latter also producing the track. This song was recorded by The Messengers at NH Studios in North Hollywood, California. Instrumentation and all vocal arrangements were done by Atweh and Messinger. Additional engineering was performed by Pat Thrall, while the track was mixed by Manny Marroquin at Larrabee Studios, also in North Hollywood. The mix was assisted by Christian Plata and Erik Madrid. Atweh and Luke Boyd perform background vocals on the song.

The song "That Should Be Me" is a down-tempo, teen pop song with R&B influences.According to the sheet music published at Musicnotes.com by Sony/ATV Music Publishing, The songis set in common time with a moderate tempo of 69 beats per minute. It is composed in the key of E♭ minor with Bieber's vocal range spanning from the low-note of G3 to the high-note of C♯5. The song follows in the chord progression of Cm–A♭2–E♭–G/B. Described as a "sobbing" ballad, Bieber "pleads the girl he left behind to take him back." Monica Herrera of Billboard called the ballad "orchestral" and said that Bieber plays the "scorned ex" in the song.