It's begun - the gates have opened and fans have started flooding into Auckland's Mt Smart Stadium ahead of Adele's concert tonight.

About 45,000 concertgoers will pack in to the venue to see the second of her three Auckland shows.

About 45,000 concertgoers will pack in to the venue to see the second of her three <note>third</note> Auckland shows. Photo / Supplied
About 45,000 concertgoers will pack in to the venue to see the second of her three third Auckland shows. Photo / Supplied