The show is a contest to determine the best young singer in Portugal.

The first two seasons were hosted by Sílvia Alberto and Pedro Granger.

[citation needed] After an absence for four years the show returned for a third season to SIC in fall 2009 now with João Manzarra and Cláudia Vieira hosting.

Ídolos had three audition cities to find the best talent in all of Portugal, including: Porto, Beja and Lisbon.

However, in the third and fourth seasons, auditions were made in Porto, Lisbon, Aveiro, Portimão and Estoril.