Bliss, Please, Friend or Foe? and Summer Sonic (2001–2004)
Following a continuous tour throughout Germany, they started recording Bliss, Please in the summer of 2000. After its release in 2001, songs such as "Same Sane", "A Reptile For The Saint" and "Ken I Die" became exceptionally popular. Blackmail also gained recognition worldwide due to this album release. The first single, "Same Sane", came out in February 2001. It was extremely popular in Germany. Their first music video release, "Same Sane", as well as the other videos from Bliss, Please first aired on VIVA 2 (VIVA Zwei), a subsidiary of popular German music video channel, VIVA. At the end of 2001, they were informed that Speicherstadt was going to close down.
From this point on they signed their further contracts with the mother-label: The Warner/Elektra/Atlantic recording group, now known as the Warner Music Group. WEA had given them their own studio in 2002, and since Kurt had produced all their work in the previous album, they decided to record their next album, Friend or Foe?, in midway 2002. During recording the album, they recorded 28 songs. Out of these, only 11 songs made it into the album. Completing the album in February 2003, they released it on May 26, 2003. From the album, the first single was "It Could Be Yours". From the album they also released an EP entitled Foe in which they packed four other songs.
Following this release, the band went on a tour to Japan to perform in the Summer Sonic Festival in 2004. They also released an export version of Bliss, Please in Japan in 2005.
During this time, they released a special version of Friend or Foe? with bonus tracks, as well as an album entitled The Lost Summer (a.k.a. The Ventricular EP). Both albums, which were released exclusively in Japan, are still available for purchase on Amazon Deutschland.