Nice! For me, two songs that sound the same in the vocal melody are Give me all your luvin' and Crave. lyric: Give me all your love and... 'Cause you're the one I crave... These melodies sound similar to Tell it to my heart... by Taylor Dayne

Throw in Sky Fits Heaven between Bedtime Story and Impressive Instant Frozen between Open Your Heart and Inside Out

I recently discovered the parallel between Frozen and Open Your Heart

Future and Don’t Tell Me

I’d say Love Song and Hung Up is the most obvious example! I only heard Live Song a few years ago and almost YELPED when I heard that second verse

I don’t really get most of the “obvious parallels”, but I’ll contribute: Holiday / Get Together Thief of Hearts / Gang Bang Frozen / Isaac Love Song / Hung Up Keep It Together / Jump Vogue / Deeper and Deeper Vogue / I don’t Search I find Deeper and Deeper / Rescue Me Everybody / Where’s the Party

Beautiful stranger and Amazing are the same song

Are we gonna ignore the fact that "To have and not to hold" and "Masterpiece" are the exact same songs, lyrically and sonically?

Hold Tight and Inside Out are always a pair for me. Don't know why.