ELLEs crack music reporter Mark Ellen is on the ground, or should that be in the air with none other than global megastar Rihanna on her 777 tour. (Seven countries in seven days, since you asked)
Here is his second dispatch from the front line.
About a thousand packed a little theatre in the centre of town in Rihanna's hit-and-run raid on Mexico City last night but you wonder how many people were REALLY watching.
Eighteen TV and video crews were shooting her by Congorock's turntables and a forest of phones, iPads and iBooks reared out of the crowd the instant Ri-Ri burst onstage in knee-length city shorts, each of them sending film or instagrams into the steaming night air in a mad social network feeding-frenzy. You started to feel half the world was in the audience.
Umbrella, Man Down and Diamonds were beyond brilliant. The bass rattled your ribcage. For the last few she wore a baseball cap and got the hugest reaction from the tiniest and most cleverly controlled bits of choreography.
A stream of tank-like people-carriers hauled band, crew and the rest of us 777 passengers straight back to the airport, River Island's Arieta Mujay tearing off her on-plane goody-bag Rihanna socks and donating them to two kids outside who'd been queuing for 12 hours. If they stay friends, they'll have a pair between them.
Note to self: must get a private jet. Take-off time is when everyone's eventually rolled up (ie 4.45am) and - in our case - any airport wants you to land there 'cos you've got Rihanna on board. Plus you get champagne and chicken in chilli beans round the clock.
A million films are being made of the 777 tour - the plane's rammed with people doing pieces to camera, crews shooting each other or just people in corners barking into video recorders. It's all incredible.
Even the movie of the movie of the movie has got to be worth watching. The Rihanna airbus sat on the strip for two hours while a 6-scale earthquake shook the country just south of Mexico City.
We then took off for Toronto. We've had six hours sleep since Tuesday morning. Today Canada, tomorrow Sweden!