Source: My PaperDoes Mick Jagger still have swagger?That's the question on everyone's lips, considering that his legendary British rock 'n' roll band, The Rolling Stones, have gone all-out in celebrating their 50th year in the biz, touring sold-out shows in the past couple of weeks and releasing memorabilia of all kinds, like their hardcover book, 50.And, of course, there's that 50th-anniversary compilation album, Grrr!, which features 50 tracks and spans three discs.But it's on two new tracks, Doom And Gloom and One More Shot, that the band - which now comprise guitarist Keith Richards, 68, bassist-guitarist Ronnie Wood, 65, drummer Charlie Watts, 71, and he who puts Steven Tyler's pout to shame, Sir Jagger - show whether they've still got it.Opening with one of Richards' trademark rough-and-tumble riffs, Doom And Gloom features Jagger, 69, lamenting over an apocalyptic world with war, zombies and everything in between. There's a lot of texture in sound, and a lot of that aggressive Jagger yowl.What it lacks, though, is conviction. The track toys with political topics, but there's no real feeling of a rebellion that would help push it over the edge.One More Shot - all lazy guitars and mid-tempo percussion - harks back to the band's Exile On Main St (1972) days, with a catchy chorus that makes it ripe for singalongs.Both tracks, thankfully, retain that bluesy, gritty old-school feel, with uptempo drums and Jagger attempting to show off his inimitable vocal "moves" (heh) - so there's at least the nostalgia factor. And, hey, the guys are trying to recapture that signature 1970s spirit, so kudos.But, while Forty Licks - their 40th-anniversary 2002 commemorative album - created a new classic in Don't Stop, the two new tunes on Grrr! just don't have that kind of impact.The rest of the album presents the back catalogue of the Stones, which were formed in London in 1962.Hits like Paint It Black (1966) and You Can't Always Get What You Want (1969) are testament to the band's unwavering vigour and a reminder why they are one of the most commercially-successful - not to mention influential - bands in history.As if their album, tour and book weren't enough, the Stones are also the subject of the documentary, Crossfire Hurricane, which chronicles the early years of the band and their journey to mainstream success.Ardent fans will be glad to know that the 110-minute programme will be aired here on the Sundance Channel next month.Wonder what's on the cards for year 60.