Patriotic Presidant Songg? HELP PLEASE!

Hey guys,
alothough im in Canada, i thought it would pretty cool ( or atleast get ppls attention...)
if i played The clasiical presidential music they always do in parades or for the presidant in the us?
I think its the trumpets they play
Sorry guys, i cant further describe it, im severly musically challenged :
HELP PLEASEE!