This song might be form 80' or 90's and there is a part with sax goes: tu ru ru ru tu ru ru ru
there is also part when singer does part like: mmmm mmmm
they sing something like: 'will you be my number one' or 'won't you be my number one' (not sure about those lyrics)
and it reminds me a bit of "don't worry be happy" time, style, I guess there might be also some celebrities in the video...
Thank you veeery much in advance!