You can read the lyrics here below.
 
Authors: N.Bassanetti, M.Savaresi, A.Trolese

Polish up my trumpet

Polish up, Polish up, Polish, Polish up, Polish up, Polish,
Polish up, Polish up, Polish, Polish up, Polish up, Polish,
Polish up, Polish up, Polish, Polish up, Polish up, Polish,
Polish up, Po po po po po, Polish up my trumpet!

Trumpet!