Show up with a "L" next to them
Show up as DLC
I havent checked on RB2 yet (I have exported them) but I know that in LRB the symbol is weird. I can't really make it out. I think it's a lego block. Correct me if I'm wrong.
It's a LEGO brick.
Tiger Uppercut: Platinum Artist | Expert: G/B | Hard: D/V
Song Count: 831 | Newest: "Great Balls of Fire" & "Dog Days Are Over"
The only way RB 1 or 2 could possibly show the Lego songs as anything other then DLC is if both games recieved a patch to tell them the difference. I doubt we will get a patch for both games just for this. However I would be very surprised and disappointed if RB 3 wasn't able to see the Lego songs as Lego, and not DLC.
☑Summer Of 69 (Lego:RB)
☑Free Bird (Rock Band 3)
☑Every Rose Has It's Thorn (DLC)
☐Youth Gone Wild