Everyone enjoys singing along to these.

The Foundations - Build Me Up Buttercup
Neil Diamond - Sweet Caroline
Dean Martin - That's Amore
The Beatles - Hey Jude
Andy Williams - Music to Watch Girls By
Billy Joel - Piano Man
Frank Sinatra - My Way
Elvis Presley - Suspicious Minds
The Temptations - My Girl
Jackson Brown - Stay
Nancy Sinatra - These Boots Were Made For Walkin'
Van Morisson - Brown Eyed Girl
Diana Ross - Ain't No Mountain High Enough
John Denver - Country Roads
Andy Williams - Can't Take My Eyes Off Of You