The band's second album Bırak Zaman Aksın ("Let Time Flow"), was released in January 1999 and was met with success.

Just after its release, Derin Esmer moved to the United States and was replaced by prominent guitarist Kerem Özyeğen.

After the devastating 1999 Kocaeli earthquake, Mor ve Ötesi started exploring more social and political themes.

The album contained considerable political criticism against the activities of the United States; both in Iraq and the rest of the world.

In the same year, they received a Golden Orange Award for their single "Bir Derdim Var", included on the soundtrack of the Çağan Irmak film Mustafa Hakkında Her Şey.

Büyük Düşler is regarded as a homage to their old fan base and a return to a style closer to their earlier albums.

During the contest, BBC commentator Terry Wogan described the lead singer as "a sinister James Bond".

On the 20th anniversary of the band's foundation, their cult album Dünya Yalan Söylüyor was, for the first time, introduced to fans on vinyl format.