Not only do we have here today our Deep Purple photo gallery from their London O2 Arena gig on Thursday night (including support bands Cats In Space and Europe), but today's Video Of The Day marks exactly 45 years since Deep Purple were hosted by famous BBC Radio 2 programme, simply titled "In Concert". Although it's fairly strange that the band were guests last time in March 1972 when they were introducing their upcoming album 'Machine Head', which became a sheer Rock classic to this date. Even the most interesting thing was that featured the very first performance of 'Smoke On The Water' in front of any audience. This time around Purple performed a subtle set of songs including four tracks from their latest 'Infinite' album, with some interesting classics by the likes of 'Bloodsucker' and 'Fireball'.