Listen to I'm Biting My Fingernails and Thinking of You online. I'm Biting My Fingernails and Thinking of You is an English language song and is sung by The Andrews Sisters and Ernest Tubb. I'm Biting My Fingernails and Thinking of You, from the album It Takes Two: Famous Duets, Vol. 2, was released in the year 2012. The duration of the song is 2:53. Download English songs online from JioSaavn.