`` I Ca n't Help It '' is a hit song by the band Bananarama .
They performed many of their hits such as `` Venus '' , `` Robert De Niro 's Waiting ... '' , `` Really Saying Something '' , `` Cruel Summer '' , `` I Heard A Rumour '' , `` Nathan Jones '' and `` Love in the First Degree '' as well as the Shakespears Sister hit `` Stay '' .