Kazik’s next release appeared in 2004. Czterdziesty Pierwszy (Forty-first, trans. MG) was a double album and thus turned out to be the longest release in his solo discography. Song Polska Płonie (Poland Is On Fire, trans. MG), full of interesting observations about the then Poland, was the most popular one, but other songs such as Idol, mocking a popular talent show, and Stalingrad (Adam und Klara) written under the influence of Wojciech Kuczok’s novel Gnój (Piece of Shit), were also well-received. Czterdziesty Pierwszy also featured Anarchia W WC (Toilet Anarchy, trans. WC), a piece originally played by Kazik’s first band, Poland. A year later the album Los Się Musi Odmienić (The Fate Has to Change, trans. MG) was released.
The inspiration for that album was Leszek Wosiewicz’s film Crossroads Cafe, in which Kazik made a brief appearance. He also wrote a few songs for the film. Apart from them, the album included, among others, W Polskę Idziemy (We’re Going out into Poland, trans. MG), a song by Jerzy Wasowski and Wojciech Młynarski (the single included eight different versions of the piece) and a dance version of… the Polish national anthem. This time Staszewski was accompanied by Izdebski and Jabłoński, as well as Glazik, Zdunek, Banasik and T. Love bassist Paweł Nazimek.
Izdebski also co-authored Kazik’s next release, Silny Kazik Pod Wezwaniem (Strong Kazik Under the Invocation, trans. MG). It’s the most ludic and festive of Staszewski’s albums, containing songs by Stanisław Grześkowiak and Silna Grupa Pod Wezwaniem, who were active at the turn of the 60s and 70s. The songs Anusia and Piwko (Beer, trans. MG) were the most popular, however, Kazik also reminded, among others, Grześkowiak’s most famous song Chłop Żywemu Nie Przepuści (A Peasant Won’t Let Anything Alive Go, trans. MG). Kazik and Izdebski presented songs from that album just once. The performance took place in September 2009 during the Fe Fighters 2 charity event in the Centralny Basen Artystyczny in Warsaw. Izdebski was also present on the PRL-inspired Zakażone Piosenki (Infected Songs, trans. MG), an album by Zuch Kazik.
Since 2012, Kazik has been collaborating with the ProForma Quartet from Poznań. Although their cooperation was meant to be a one-off, the project resulted in the release of two albums. The double album Wiwisekcja (Vivisection, trans. MG) from 2015 is a semi-concert album consisting of songs known from Kazik’s earlier output, but it also contains a new, joint composition of Staszewski and the Quartet entitled Kalifat (Caliphate, trans. MG). The second album, Tata Kazika Kontra Hedora (Kazik’s Dad vs. Hedorah, trans. MG) from 2017, recorded as part of this collaboration, complements the series of albums with arrangements of lyrics by Stanisław Staszewski. It’s Kazik’s third approach to his father’s works. The break in the artist’s solo releases is also filled with the album Warhead released in 2018, on which Kazik and Janusz Zdunek, the trumpeter of Kult, presented their own versions of British punk classics from the 1970s.
The premiere of Kazik’s first fully solo album since 2008, entitled Zaraza (The Plague, trans. MG), was announced for June 2020. The release is promoted by the single Twój Ból Jest Lepszy Niż Mój (Your Pain Is Better Than Mine).
Apart from his solo activity, Kazik regularly performs with El Dupa and KNŻ bands, and in 2005-09 he performed with Buldog. He may also be heard on albums by such artists as Acid Drinkers, Piersi, Voo Voo, Katarzyna Nosowska, Stasia, Kasia i Wojtek, Yugoton (together they recorded the hit Malcziki – The Lads, trans. MG), Spec, The Syntetic, Zacier and Plagiat 199. He also wrote a song for the film Pitbull directed by Patryk Vega, sang The Ballad of Janek Wiśniewski for Black Thursday by Antoni Krauze as well as Piosenka Członka and Piosenka Milipantów (The Song of a Member, The Song of the Milipants, trans. MG), promoting Jacek Dukaj’s novel Wroniec. The latter two songs were used in an animated film based on the book.
He has repeatedly participated in concerts of other bands, such as Pidżama Porno, T. Love, Armia, TPN 25 and Płonąca Pyta. Kazik’s solo achievements were described in the book Kult Kazika published in 2000. Staszewski himself has written several books, including a collection of his columns entitled Niepiosenki (Unsongs, trans. MG), a biography of Stanisław Staszewski written jointly by Kazik and Jarosław Duś, and Kazik’s autobiography Idę Tam Gdzie Idę (I Go Where I Go, trans. MG). Wiesław Weiss’ book Kazik: Biała Księga (Kazik. White Paper, trans. MG) from 2017, is the latest publication about Kazimierz Staszewski. Moreover, at the end of 2019, the premiere of the documentary Kult: Film directed by Olga Bieniek took place. The film was shot between 2013 and 2019, and also included archival materials.
Kazik has won numerous awards, some of which he does not accept. Among those he collected are Polityka’s Passport, the Machinery Award, the Yach Film Festival Award and award from Tylko Rock monthly. He did not collect, among others, several Fryderyk Awards and an MTV Award. In 2014, he was awarded the Knight’s Cross of the Order of Polonia Restituta for his outstanding merits in creative work and artistic activity as well as achievements in promoting Polish culture.