What should the 'Idols' sing on Lennon-McCartney night?

Host Ryan Seacrest said the “Idol” producers have waited seven seasons for this to happen, and tonight’s the night: “Idol” contestants have the chance to sing from the Lennon-McCartney songbook.

But what songs should they tackle?

And which classic would pair up best with which wanna-be?

We await your input in the comments below.

David Archuleta already cooed his way through “Imagine” by John Lennon a taste of what’s to come…