Himesh Reshammiya and Sonu Nigam feature / sing together in this IFFI song! (the only other time this happened was in DIL VICH LAGYA VE in CHUP CHUP KE whereby Himesh started off with fulltu high pitched vocals and Sonu took over from there on with his new inspired singing style from himesh).
He said in a mumbaimirror article that "I tried to copy Himesh in Phir Hera Pheri ('Dil Vij Lagiya Re') and people got confused, they thought it was Himesh singing. But by simply copying him, my range as a singer has increased" - http://www.india-forums.com/forum_posts.asp?TID=323766&TPN=2
But he has also done such goatish behaviour like:
Isko dekh ke aisa lagta hai jaise kuch jal raha hai, but if you thought that Sonu ki atma jal rahi hai outta sheer jealousy then your guess is as good as mine!
I know that some fans would not want Sonu to feature again in Himesh's music coz of his antics (mimicry etc) but doing such stuff shows/reveals a lot about Sonu more than it does about Himesh because everyone out there can judge the underlying intent / motive of such behavior.
But personally I would like Himesh and Sonu to put their differences aside and work together again when Himesh overturns his self-imposed policy decision to only sing all his songs himself.
Why?
Based on Sonu's singing talent which has done some HISTORY works in Himesh's compositions. Based upon their music association, Himesh-Sonu were always a HIT jodi, is me koi bhi shak ya do rai nahi hai!
A small Justification / Proof?
> YEH DIL TOH MILA HAI from DIL NE JISE APNA KAHA.
> BHANGRA PAALE from ANTHONY KAUN HAI.