In addition to the vocal performance, instrumental portions of the song appear in the film's underscore, sometimes as an introduction to the main "Pink Panther Theme".
Dressed in a black cat-suit and singing in Italian, [Jeffries] slithered her way around an Alpine ski chalet performing... "Meglio Stasera" ... as the bewitched cast looked on.The song has been recorded in a number of versions.
An instrumental that resembles the underscore of Jeffries' version is included on the soundtrack album, as is a group vocal with only vaguely related English lyrics (which can be heard in the film during the fancy-dress ball and costume party whilst the attempted robbery is taking place).
Another Italian version, arranged by Ennio Morricone and performed by Miranda Martino, in 1963, appears on the compilation album Da Hollywood a Cinecittà.
"It Had Better Be Tonight (Meglio Stasera)" was later covered by Canadian crooner Michael Bublé, and released as the fourth single from his third studio album, Call Me Irresponsible.
Bublé's version of the song reached #74 in the UK Singles Chart after being used in an advertising campaign for Marks & Spencer.