Rampungake ukara ing ngisor iki: Constellation Jones ngarahake video musik, sing dirilis tanggal 9 Juli 2015. Iki nggambarake Trainor lan Legend sing nyanyi ing bangunan lilin nalika udan ing njaba, diinterpretasi karo adegan macem-macem jinis hubungan. Trainor wis nindakake "Like I'm Gonna Lose You" urip ing pirang-pirang pertunjukan, kalebu
2015 Billboard Music Awards, "The Tonight Show Starring Jimmy Fallon", lan American Music Awards taun 2015. Lagu iki uga dileksanakake nalika Trainor's That Bass Tour (2015), MTrain Tour (2015) lan The Untouchable Tour (2016). "Like I'm Gonna Lose You" wis dirungokake dening klompok bocah wadon Amerika Fifth Harmony ing upacara "Billboard" Women in Music 2016.