<P> On July 4, 2004, Roth performed with one of the world's most popular orchestras, the Boston Pops, at United States' annual Pops Goes the Fourth celebration in Boston . Hagar remained active, releasing five albums and creating his own merchandising brand Cabo Wabo, which lends its name to his line of tequila, as well as his franchise of cantinas . He reunited with Montrose in 2003 and 2005 for a few performances and maintained contact with Michael Anthony, often playing with him . With Van Halen inactive, Anthony set up a website and worked on merchandising projects such as his signature Yamaha bass and range of hot sauces . He became involved with the annual music industry NAMM Show . </P> <P> During January 2003, the VHND (Van Halen News Desk) website reported that Sammy Hagar was working with the Van Halens . No official confirmation came for an extended period of time . In late March 2004, Van Halen and Hagar announced that Hagar would reunite with the band for a new compilation release and a Summer concert tour of the USA . </P> <P> In July 2004, Van Halen released a new 2 - CD compilation featuring three new songs with Hagar: "It's About Time," "Up for Breakfast," and "Learning to See ." These new songs were credited to Hagar / Van Halen / Van Halen, which was unusual since normally the entire lineup, which also included Michael Anthony, would be credited . However, the performance was credited to the entire band . Anthony would later reveal in interviews that Eddie Van Halen had in fact not wanted him to be a part of the reunion and for this reason Anthony had not been allowed to perform in the sessions (explaining his lack of a songwriting credit), with Eddie playing the bass parts himself instead . However, Anthony did provide backing vocals for the three tracks . No songs with Gary Cherone from Van Halen III were included . It was certified platinum in the USA in August 2004 . </P> <P> The Summer 2004 tour grossed almost US $55 million, and Pollstar listed Van Halen in the top 10 grossing tours of 2004 . Professional reviews of the tour, however, proved to be mixed . On some shows, Eddie's son Wolfgang came onstage and played guitar with his father during "316," a song dedicated to his son, taking its name from his birthday . During the later stages of the tour, stories of Eddie being drunk began to surface along with fan - shot video footage of poor playing . At the band's final show of the tour, in Tucson, Eddie smashed one of his guitars at the end of the show . </P>

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