Silvester ? in my 20 years in the great U.S.A. I have never heard anyone reffer to new year's eve as Silvester. ... Only those who insist that it's "bad" to celebrate the world wide new year's (rosh hashana shel hagoim..) call new year's eve parties Silvester celebrations..

U2 sing: "The Silvester day"

yep. they are Irish though