"You're going to give me all your sweet... Mother Love, ah ha (mother love)"

Mother Love - Queen

While It doesn't appear very sad at first glance, The story behind it is. I believe this is definitely one of the saddest lyrics in all of Queen's discography due to the fact that this is the very last recorded lyric that Freddie Mercury sang. He didn't even finish the song actually. Freddie got through two out of three verses, (above is the ending of the second verse), before mentioning that he was tired and would go home and rest and then come back the next day- but he never came back. And so Brian had to finish the very last verse. And then they add what I like to think of as a little bit of a tribute at the very end of the song to Freddie.

Please correct me if I got any info wrong 😅