Because I just got tickets to the PINK tour next summer.:)
DS2 has autism , Pink is one of his musical obsessions and one show he is desperate to see, and we just couldn't get them last time she toured.
I've just told him and he nearly burst with excitment 
...even better, it's on his actual birthday (he'll be 26 ..how did he get that old?)
He lives a very quiet life with us (not independent) but watching his face just light up... pure happiness!