Aleksandar Pejović, better known as Aco Pejović, is a Serbian singer from Prijepolje. Debuted in 2000, he came to more significant prominence upon the release of his second album, Prevara. Pejović has released eight studio albums and has collaborated with fellow-singers like Dženan Lončarević, Zorica Brunclik, Edita Aradinović, Aleksandra Prijović, Dejan Matić and Emina Jahović.
Pejović has maintained popularity throughout the western Balkans and has held solo concerts in some of the largest regional venues, such as the Pionir Hall and Belgrade Arena in Serbia, Skenderija and Zetra Olympic Hall in Bosnia and Herzegovina, Boris Trajkovski Sports Center in North Macedonia, and Zagreb Arena in Croatia.
He performed the song "Ponoć" from the 2021 biographical film directed by Dragan Bjelogrlić, based on the life and work of singer Toma Zdravković.
Pejović has three daughters with wife Biljana, whom he has been married to since March 1994.