The Four Seasons (band) in October 1975, relaunching their career there. The Four Seasons opened 1976 atop the Billboard chart with their fifth #1 single, "December, 1963 (Oh, What a Night)", co-written by Bob Gaudio and his future wife Judy Parker. The single also hit number one in the United Kingdom. "December, 1963 (Oh, What a Night)" had Polci singing lead on the verses, Ciccone featured on specific sections, and Valli doing lead vocals only on the two bridge sections and backup vocals on the chorus. Although the band also scored minor chart placements with "Silver Star" (with Valli on harmony vocals) (#38 in
Oh What a Circus peak of number 3 in its sixth week. It was Essex's highest charting song, since "Hold Me Close" had topped the charts in 1975. "Oh What a Circus" was present within the top-100 of the UK Singles Chart for a total of 11 weeks. Across Europe the song charted in Belgium for 5 weeks, reaching a peak of number 26. In Netherlands, the song charted on both the Dutch Top 40 and Single Top 100 charts, reaching peaks of number 18 and number 20 respectively. The song also charted at number eight in Ireland. Although not released in Australia, the