Teapacks have been together for nearly 20 years

Push The Button by the group Teapacks was deemed "generally appropriate", said Eurovision spokesman Kjell Ekholm.

Two weeks ago, Mr Ekholm said the song, which refers to "demonic" rulers and "he's gonna blow us up to... kingdom come" could be banned.

Teapacks deny the song is about Iranian President Mahmoud Ahmadinejad.

Contest supervisor Svante Stockselius said they do not comment on individual cases, "but a couple of songs caused some discussions".

Public vote

"Eurovision song contest has very detailed rules for the songs: they can have no explicit wording, no coarse language, nor any political propaganda," he added.

Teapacks said in a statement that they "were not a political group".

"It does not refer to countries, continents, names of people and may, just like any other text, be subjectively interpreted in many different ways and angles," the statement read.

The UK entry will be chosen by the public on Saturday from six possible acts.