"Meglio stasera" (known in English as "It Had Better Be Tonight") is a 1963 song with music by Henry Mancini, Italian lyrics by Franco Migliacci and English lyrics by Johnny Mercer. It was composed for the 1963 film The Pink Panther where it was performed by Fran Jeffries. 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".

The beginning of the song, in the original Italian, is here followed by a literal translation and the first two lines of the English version which contains an Italian expression, "Fa' subito!", which translates as "do it right away", but which does not appear in the Italian lyrics. However, all the versions carry the same underlying meaning of "Let's make love tonight, because who knows what will happen tomorrow."

The song has been recorded in a number of versions. The Italian version performed by Fran Jeffries appears in the film, but not on the soundtrack album. 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, on the compilation album Da Hollywood a Cinecittà. Morricone later also did an instrumental version on compilation albums. A version that appears in another Sellers, Blake Edwards & Mancini collaboration, the 1968 film The Party. Other singers to subsequently record the song include Sarah Vaughan, on her 1965 album Sarah Vaughan Sings the Mancini Songbook, and Lena Horne. An instrumental lounge-style version was recorded by The Hub Kings on their album This Way. John Barrowman performed the song during his 2008 tour. Accordionist Frank Marocco recorded the song together with "Quando, quando, quando", as part of a two-song medley on his compilation album Beyond the Sea. His arrangement appears in one of his sheet-music book combinations, titled Latin Rhythms. A Chill-style remake of this song was done by Italian group Mondo Candido. It appears on the mix album Buddha Bar V. A mambo-style version of the song was recorded by the swing revival group Lee Press-on and the Nails for the album El Bando en Fuego. A version of the song was recorded by Mic Gillette on his album Ear Candy. A Spanish version was also recorded in Santiago, Chile, by Bambi, a popular singer in the mid-1960s. The title was "Mejor Ahora". The Greek singer Elli Paspala performed the Italian version on her 1993 live album Η Ελλη Πασπαλά στο Μέγαρο Μουσικής.

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