On this day in music history: December 7, 1991 – “Achtung Baby”, the seventh studio album by U2 hits #1 on the Billboard Top 200 for 1 week. Produced by Daniel Lanois and Brian Eno, it is recorded at Hansa Ton Studios in Berlin, Germany, STS Studios, Elsinore Studios and Windmill Lane Studios in Dublin, Ireland from October 1990 – September 1991. the band re-invent their sound, experimenting with industrial, electronic dance rhythms and alternative rock. The result win the veteran Irish band a new generation of fans and regains critical favor lost on their previous album “Rattle And Hum”. It spins off five singles including “Mysterious Ways” (#9 Pop) and “One” (#10 Pop). “Baby” becomes U2’s second largest selling album after “The Joshua Tree” with worldwide sales of over eighteen million copies. It wins a Grammy Award for Best Rock Performance by a Duo or Group with Vocal in 1993, with producers Daniel Lanois and Brian Eno winning the Producer Of The Year Grammy (Non-Classical) (tied with L.A. Reid & Babyface) for their work on the album. “Achtung Baby” is reissued for its twentieth anniversary in 2011 in various editions including a mammoth ten disc box set containing six CD’s, four DVD’s, five 7" vinyl singles and other memorabilia connected with the album. "Achtung Baby" is certified 8x Platinum in the US by the RIAA.