Reunion With Hagar (2003–2005)

During January 2003, the VHND (Van Halen News Desk) website reported that Sammy Hagar was employed with the Van Halens. No authorised commendation came for an extended period of time. In late March 2004, Van Halen and Sammy Hagar announced that Hagar would unify with the adornment for a Best Of medium promulgation and a Summer concert journeying of the USA.

In July 2004, Van Halen released their second Greatest Hits compilation (a double album, different the first), featuring three newborn songs with Hagar: "It's About Time", "Up For Breakfast", and "Learning to See". These songs were newly cursive by the Van Halen brothers and Sammy Hagar. The songs were credited to Hagar Van Halen, which was unusual since normally the entire roster (which also included Michael Anthony) would be credited. However, the performance was credited to the entire band; Michael Anthony would later reveal in interviews that Eddie Van Halen had in fact not wanted him to be a conception 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 activity the voice parts himself instead. Though it was the only newborn medium since the band's prototypal Greatest Hits, no songs with metropolis Cherone from Van Halen threesome were included. It was certificated platinum in the USA in August 2004.

The Summer 2004 journeying grossed nearly US$55 million, and Pollstar traded Van Halen in the crowning 10 grossing tours of 2004. Reviews of the journeying however from professional reviewers evidenced 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. However, earnest problems surfaced. Promoters lost money, tickets were ofttimes deemed overpriced, and few shows sold out with most venues seldom passing 50% sales.

During the later stages of the journeying stories of Eddie being drunk began to surface, along with follower shot recording footage of slummy playing. At the end of the band's test exhibit of the tour, in Tucson, Eddie smashed digit of his guitars during the exhibit and quickly walked off stage.

After the tour, things broke down. At prototypal Hagar expressed he had ease to end what he would be doing with Van Halen, although he was ease an authorised member of the band. Soon after, however, both Hagar and Anthony admitted that Eddie had problems with alcohol during the journeying that affected everyone involved. Hagar expressed that he was "done with Van Halen" and wished that everyone would hit "taken it more seriously". Despite this, Eddie later described himself as 'satisfied' with the tour.

After the journeying ended, Hagar returned to his solo adornment The Waboritas, and Anthony appeared with him on journeying occasionally. The adornment quickly faded from view after Hagar mitt again. In Dec 2005 Michael Anthony revealed in an interview with Mark & Brian that he had not talked with the Van Halens and was unsure of their plans. Since then, Hagar and Anthony hit bacilliform the supergroup Chickenfoot, featuring Joe Satriani on guitar and Red Hot Chili Peppers' drummer Chad adventurer on drums and hit ended touring in support of their prototypal medium and DVD with plans on another medium and journeying slated for 2010.