Born in Rome to a Sardinian mother, Gianna Orrù, and a Roman father, Mario, Valeria Marini was raised in Cagliari.

She took part in several series of these such as Bucce di banana, Champagne, Rose rosse, Viva le italiane, Miconsenta, Barbecue.

After these performances, her fame grew in Italy; in 1997 she was nominated to present the Sanremo Festival with Mike Bongiorno and Piero Chiambretti.

In 2015, she took part as a contestant, coupled with Federico Degli Esposti, in the third season of Notti sul ghiaccio, the Italian version of Skating with Celebrities.

In 2016, she participated to the first season of Grande Fratello VIP, the Italian version of Celebrity Big Brother.