Neočekivana sila koja se iznenada pojavljuje i rešava stvar (Serbian Cyrillic: Неочекивана сила која се изненада појављује и решава ствар; translated as An Unexpected Force That Suddenly Appears and Settles the Matter) is a Serbian alternative rock/experimental music supergroup from Belgrade.
The selected recordings from their performances were remixed in the studio by Boris Mladenović, Vladimir Đorđević, Nenad Branković and Goran Vukojčić, and released independently by the band themselves on compact disc and cassette during the autumn of 1999.
At the time, the band live appearances started to feature the DJs Yu Ninja and Boža Podunavac.
Sunca (The Suns), produced by Dušan Kojić "Koja", featuring Boris Mladenović on sampler as the official band member, composed mainly of instrumental tracks.
Guest appearances featured Sonja Lončar (keyboards), Dušan Petrović (saxophone), Nataš Perazić (flute), Dejan Utvar (djembe).