Jenny Tseng VS. Regine Velasquez Singing "I Wanna Dance With Somebody"

I don't want to admit it but Jenny Tseng's way of singing always gets Regine Velasquez-Alcasid's voice to invade my mind. I love both singers and they have their own merits. However, they SOUND almost alike unless one notices blatant cues like Re

Here's Jenny's singing of "I Wanna Dance with Somebody" -- a musical presentation that came before Regine. 

Here's the Regine version, but Jaya is with her. Both voices might overlap my amateur ears LOL.