++CONTAINS COPYRIGHTED MUSIC++<br /><br />One of the UK's oldest Oasis tribute bands says they've "never been busier" - after the real Gallagher brothers announced a shock reunion. <br /><br />Stevie Brown says his band Oasiz have seen a huge surge in popularity after rumours of the Manchester rockers' return began circulating last week. <br /><br />The 45-year-old - who formed the cover band nearly 20 years ago with his elder brother on guitar, like the Gallaghers - went viral last year after fans saw him perform and mistook him for the real Liam Gallagher. <br /><br />Liam, who was recovering from hip surgery at the time, even commented on the videos.