debbie bingham, the nurse, wanted to talk about losing her son. he passed away four years ago. >> bingham: my son was diagnosed with cancer when he was 34 years old. >> stahl: oh, my word. she's the one who took care of him. >> bingham: it didn't matter how much i knew. it didn't matter how much i helped other people, i just couldn't do anything. >> stahl: debbie knew what she wanted to sing in the show-- "i will always love you," the song >> bingham: only problem was vy wasn't crazy about it at first. >> higginsen: i wasn't sure. >> stahl: why weren't you sure? >> higginsen: if that song is not sung the right way, it misses big time. >> bingham: ken said yes. vy said no. ken said, "why not?" vy said, "because." and i said to her, "if you give me the chance to show you, i promise you you won't be disappointed." >> higginsen: how do you say no to that? >> stahl: you can't say no. >> higginsen: i can't say no to that. but i did say, "okay. but have another song, just in case." ( laughs ) >> stahl: theo harris wanted to sing about his time in prison a

. >> stahl: debbie bingham, 56, needed a steady job to raise here a nurse. >> debbie bingham: i worked in pediatrics, in the trauma center, so i did a little bit of everything. >> stahl: did you ever dream of singer? >> bingham: all the time. er, also 56, works for her local school district. >> renee walker: when i startedlf it would just be a temporary job until i made it as a singer. so, i've been there 31 temporary years. hl: in some cases, the talent was obvious. in others, like a 75-year-oldtle less so. >> higginsen: oh, matthew brown. he came in... he was bent over, looking down, and i was thinkingna happen here?" >> stahl: "he... he's not right know. i mean, look at... whew. at you and said, "uh-uh." >> matthew brown: yes. yes. yes. >> stahl: she told you that? >> brown: she told me that. he pulled his shoulders back. he started to sing.my chair. ah! >> brown: shall always be my song of praise... my god! that's what i'm looking for. >> brown: and i looked at her. laughs )ngs like that today? you can't turn on the radio and hear that.n i was a young girl. >> stahl: he sounded, to