In 2007, Armin collaborated with the Bosnian singer-songwriter Hari Varešanović, who authored and arranged the song "Još te volim" (I Still Love You), and with whom Muzaferija performed at the 2007 Melody of Mostar Festival and won the second jury award.

Appearing at the 2007 Sunny Scales in Herceg Novi with the song "Povedi me" (Take Me), signed by Varešanović and Fahrudin Pecikoza, he won the high fifth place in the strong competition.

He was also part of a big tour honoring the legendary Indexi, where he performed with music veterans: Hari Varešanović, Aki Rahimovski, Mladen Vojičić Tifa, Željko Bebek, Teška Industrija and other notable names.

On 16 July 2015 (day before Eid al-Fitr 2015), Muzaferija performed on a Bijeljina[6] manifestation "Ramadan in Bosnia" (Ramazan u Bosni / Рамазан у Босни).

[8][12][13][14] Professor of music and music producer, Mehmed Bajraktarević, Bosnian singer-songwriter Eldin Huseinbegović, singer Armin Muzaferija and singer Lamija Kadić, with the support of Hayat Production, contributed to the fight for investigating Dženan Memić's death (young man who died in a controversial conditions) by the congratulatory for Memić family (to prove the truth and satisfy justice regarding the death); they expressed their support with a song called "Voljenom odlaze voljeni" (Beloved Goes to The Beloved).