Multiplatinum British psychedelic rock band Pink Floyd announced plans for a major U.S. concert tour and the release of a new album at an extravagant press conference Thursday in Pasadena.The post-Roger Waters band will perform at the Rose Bowl April 16. Tickets go on sale Feb. 12. The tour, which begins March 30 at Miami’s Joe Robbie Stadium, is promoted by BCL Group’s Concert Prods. Intl. L.A.’s Avalon Attractions is local co-promoter. The live trek is the band’s first since 1987 and promises to be one of the most elaborate stadium excursions ever mounted. It will visit some 40 North American cities, including New York, San Francisco, Mexico City and Montreal. The announcement was made by band manager Steve O’Rourke at a park adjacent to the stadium and in the shadow of the Pink Floyd Airship, moored nearby. The as-yet untitled new album is being mixed and will be released in late March, coinciding with the tour’s bow.