Křížek began his career in the now unknown group BMM, after which he joined the Žatec-based band Nervus Vegus.
In the first months of 1985, TAM was offered an opening slot for the annual concert of the band Orient, which they accepted.
This concert was attended by members of the heavy metal band Vitacit, whose lead singer Dan Horyna departed in February of the same year.
In 1985, after Křížek joined, they met guitarist and singer Miloš "Dodo" Doležal, who became the band's new frontman.
The single "Vzdálená" proved to be a huge success, topping all domestic charts, and the band went on tour for the rest of the year.
In 1993, Křížek released another solo album, titled Klíč k mé duši, which received Diamond certification the following year for 400,000 copies sold.
The same year, he sang the intro song to the cartoon O Malence, together with Slovak singer Dara Rolins.
In 1996, Křížek issued the holiday album Kam hvězdy chodí spát, in collaboration with the Bambini di Praga youth choir.
The same year, Křížek sang a duet with Kateřina Brožová on Michal David's musical Kráska a zvíře.
On the occasion of Karel Gott's sixtieth birthday, Damiens performed his song "Adresát neznámý" at a concert hall in Prague.
In the spring of 2001, Křížek recorded the album Síla návratů with Citron, a selection of hits he had sung with them in the past.
Křížek's voice gained prominence in 2005, when he composed and sang the song "Země pohádek" as the theme of the advertising campaign for a children's online film store of the same name.
[2] During 2006, Křížek, together with guitarist Radek "Reddy" Kroc, performed all over Czechia, playing acoustic arrangements of Vitacit, Citron, and Kreyson hits.
In the middle of the year, Křížek resuscitated Kreyson, which had been on hiatus since 1996, and announced a contest to find new band members.
The album was composed of acoustic recordings of Křížek's older songs with Kreyson, Citron, and Vitacit, with Radek Kroc on guitar.
During the summer of 2011, a new single was released by Kreyson, serving as a promo for the band's upcoming studio album, Návrat krále, which came out in 2013.