There was a strange noise. Sort of like a key being strummed against piano strings [anyone understand this]? Then, gradually, a blue box appeared. A 1950's police box. The TARDIS. 

"What the frickity frak?!" Anya gasped. Cheri, Zoe May, Lisa Boon, Rebecca [who was already expecting it] and some other Whovians started fangirling.

"Frickity frak? Hey, that's my line!" Pretzel said to Anya.

"Sorry, I've just caught onto it. Anyway, now's not the time!" She replied. Pretzel smiled. It was now going to be a new saying. 

Then The Doctor stepped out [it's gonna be David because he's the most popular] and looked around at the fangirls. 

"What I'm about to do is going to make your dreams come true," he said calmly, "but for that I need you to be reasonable calm. That means at least no screaming, okay? Also, be very careful what you say, as I don't want you destroying the future by telling it. Though I can also erase memories if needed."  

The fangirls nodded in shock and confusion, waiting in suspense. 

Then The Doctor opened up the TARDIS door, and out stepped four men everyone never thought they'd ever see.

"Hello, everyone! I've heard this is 2017, so in case you don't know us now, we're the best band in the universe: The Beatles! Ask anyone from the 60s." John Lennon announced grandly and waved at everyone.