Kelly Jones's Stereophonics put in a raucous show
Plagued by foot-and-mouth disease, which forced a relocation from Chepstow Racecourse, and Kelly Jones's flu, which cancelled their US tour, the band were happy to finally turn up at their biggest ever gig on Welsh soil.
An estimated 60,000 fans joined the Phonics in the capital along with support acts the Black Crowes and the Crocketts - this was a rock concert in the very best sense of the word.
Stadium bosses closed the retractable roof to keep out the rain and to keep in the raucous rockers' noise.
But the fans could not keep a lid on their enthusiasm, many waving Welsh flags and huge plastic daffodils.
Troubled times
The boys from Cwmaman played a varied, two-hour set including material from their third and latest album, Just Enough Education To Perform, which went to the top of the charts when it was released in April.
JEEP is still top of the indie charts, moving around 20,000 copies each week.
The performance came as a relief after a troubled few months for the Phonics.
In May, the band was forced to cancel a US tour after Kelly Jones's flu bug worsened to a chest infection and doctors ordered a month's rest.
They also had to pull out of a curtain-raising appearance before the FA Cup Final on 12 May.
Saturday's concert, which seemed to fit the Millennium Stadium so well, was slated for Chepstow Racecourse - but foot-and-mouth put paid to the band's "Day At The Races" idea along with a host of horse races.
Then, Glastonbury 2001, which the Stereophonics were rumoured to headline, was cancelled over crowd safety concerns.
They went on to play a virtual 90-minute Glastonbury event to a handful of faithful fans and a web audience.
But it served as little more than a rehearsal for the impressive Cardiff concert.