Belgium, the chart performances of "Optimistique-moi" were also disappointing. On Swiss Singles Chart, it peaked at number 58 for two consecutive weeks on 19 and 26 March, then dropped and fell off the chart after eight weeks. On the Belgian Ultratop 40 Singles Chart, the single appeared for eight weeks. It entered at number 35 on 4 March 2000, reached number 15 three weeks later, then dropped, and was the second most successful single of the album, after "L'Âme-stram-gram". Live performances In 2000, Farmer performed the song on four television shows, making the song the most promoted one from Innamoramento: NRJ Music Awards (22 January, TF1), Les Années tube (3 March, TF1), Hit Machine (11 March, M6) and Tapis rouge (25 March, France 2). On these occasions, the singer wore a dress made by John Galliano and performed a choreography accompanied with six dancers. She almost fell while walking on the train of her dress when she performed in Hit Machine. The song was only performed during the Mylenium Tour, as seventh song of the show, and was thus included in the track listing of the live album and DVD Mylenium Tour. When the first notes of the song were played, Farmer arrived by surprise on stage while spectators were watching the Chinese shadow of dancer Valérie Bony, believing she was Farmer. Farmer wore a black costume composed of a woven trousers open on the upper thighs, a transparent bustier, a shimmering jacket closed, high shoes with heels, a large necklace and two iron false-buttocks. She was surrounded by dancers similarly clothed, but without the jacket. They performed a very swift and rhythmical choreography, the same as for the promotion of the song. After the song, the chorus was sung a cappella several times by the audience and Farmer. Formats and track listings These are the formats and track listings of single releases of "Optimistique-moi": CD single CD maxi 1 - Digipack CD maxi 2 - Digipack 12" maxi Digital download CD single - Promo / CD single - Promo - Luxurious envelope CD single - Promo - Remix 12" maxi 1 - Promo 12" maxi 2 - Promo 7" maxi - U.S. VHS - Promo Release history Official versions Credits and personnel These are the credits and the personnel as they appear on the back of the single: Mylène Farmer – music, lyrics Requiem Publishing – editions Polydor –