Alexander Starovoitov, a member of the Russian State Duma, the lower chamber of Parliament, asked the Prosecutor's Office to investigate the incident, reported Billboard magazine.
"Just like many citizens of the Russian Federation, I am an iPhone owner," Starovoitov said in the address to the Prosecutor's Office, quoted by the Russian daily Izvestia.
"In 2014, tracks by U2 were uploaded in a viral way to my Music folder in iTunes, with the album cover featuring what I believe to be two men engaged in a manifestation of non-traditional sexual relations," Starovoitov added.