<Table> <Tr> <Td> "Lonely Days" (1970) </Td> <Td> "How Can You Mend a Broken Heart" (1971) </Td> <Td> "Don't Wanna Live Inside Myself" (1971) </Td> </Tr> </Table> <Tr> <Td> "Lonely Days" (1970) </Td> <Td> "How Can You Mend a Broken Heart" (1971) </Td> <Td> "Don't Wanna Live Inside Myself" (1971) </Td> </Tr> <P> "How Can You Mend a Broken Heart" is a song released by the Bee Gees in 1971 . It was written mainly by Barry and Robin Gibb and was the lead and first single on the group's 1971 album Trafalgar . It was their first US No. 1 single and also reached No. 1 in Cashbox magazine for two weeks . </P> <P> In the US Atco Records issued both mono and stereo versions of the song on each side as a promo single . The B - side was a Maurice Gibb composition "Country Woman". </P>

Who sang the song how can you mend a broken heart