What is that oasis song ???

hey there used to be this song on Vh1 from Oasis but everytime I used to lisen to it it was at the near endings I was trying to hear the lyrics but all I could make out was “Come On !!” the songs I heard and checked was dont go away half the world away live forever stand by me stop crying your heart out slide away do you know what I mean champagne supernova dont look back in anger

the only description I can give is noel was on acoustic one of the guitarists was using a slide guitar and it has this one Riff to it that sounds like a Strings section very mellow very nice sounding :) !! ughh I noe am not giving a good explaination but this certain strings section ( or I don’t know if the slide guitarist is doing that ) and its not letting me sleep >.< so guys please help its by oasis just help me out guys >.< thanx :D !!!