In the second half of the decade, with the arrival of new musical trends on the Yugoslav rock scene, their popularity heavily declined and since the mid-1970s the band, although never officially disbanding, performed occasionally only.

[1] Initially, they played covers of international hits, mostly of songs by Cliff Richard and the Shadows, performing at dances at the Zagreb club Polet.

[1] By the end of the year, Crveni Koralji had several appearances on television and recorded the songs "Vinetu" ("Winnetou") and "Niz cestu" ("Down the Road") for Radio Zagreb.

[2] In May 1964, Crveni Koralji performed at the Vatromet ritma (Fireworks of Rhythm) festival, held in Hall 3 of the Belgrade Fair, alongside Safiri, Nautilus, Zlatni Dečaci, Lutalice, Iskre, Elipse and Sadžo.

[4] In July of the same year, they performed as a backing band for the popular singer Karlo Metikoš on his Yugoslav tour, playing 50 concerts.

The EP featured The Shadows-inspired instrumentals "Najljepši san" and "Ponoć je prošla" ("Midnight Has Passed"), a cover of The Crystals' song "Then He Kissed Me" entitled "Dok je drugi ljubi" ("While Someone Else Is Kissing Her"), and the song "Rekla si: volimo se" ("You Said: We Love Each Other"), the latter becoming their first hit.

[1] The band achieved nationwide popularity, receiving thousands of fan letters from all over the country, and their performances and debut release were praised by the Yugoslav music press.

[1] In October 1964, the band performed at the third edition of Vatromet ritma, held at the Novi Sad Fair, alongside Faraoni, Elipse, Detlići and Siluete.

[1] They played as a studio band on records of popular singers like Karlo Metikoš, Đorđe Marjanović, Gabi Novak, Ivo Robić, Zdenka Vučković, Ivica Šerfezi, Zvonko Špišić and others, and performed as the backing band for Tereza Kesovija, Lado Leskovar, Džimi Stanić, Ana Štefok and others.

[1] In July 1966, they won first place at the International Beat Festival, organized in Zagreb and featuring Yugoslav and Italian bands.

[1] In August, the band went to West Germany, where they spent seven months performing in clubs in Darmstadt, Dortmund, Nuremberg and Frankfurt.

[9] After their return to Yugoslavia, they won first place at the Zagreb Music Festival with the song "Ne pitajte za nju" ("Don't Ask Me About Her").

[11] The EP also featured the band's own songs "Ne želim više tu ljubav" ("I Don't Want That Love Anymore") and "Bila si jedina" ("You Were the Only One").

[11] He debuted as a solo artist at the 1969 Subotica Youth Festival, performing the song "Nikad neću biti sretan" ("I'll Never Be Happy").

[11] During the same year, he released the solo EP Dvije čaše (Two Glasses), featuring four songs written by Alfons Vučer.

[11] In 2006, the group recorded the album 21 karat in the lineup featuring Babarović, Lukačić, Marinac, Zvonko "Deda" Gorički (bass guitar) and Vlatko Medetski (keyboards).

[11] The album featured songs authored by Babarović, Branko Bogunović, Milo Ostrović and other songwriters, as well as covers of foreign hits.