Frida, Benny and Björn all attended the first anniversary performance of ABBA Voyage and were announced as being present to the audience at the end.  They all waved from the Dance Booth where they had been seated.

There was an after party with celebrity guests including Ronnie Wood, Richard Arnold, Scott Mills, Bruno Tonioli, John Bishop and Sir Ian McKellan.

Some footage of them appeared:

1. ABBA Voyage - Celebrate our One Year Anniversary with us
2. Private footage - showing Benny, Frida and Björn being announced to the audience
3. Private footage - showing Frida going outside to talk to the fans (lovely footage this is)

ABBA Voyage 1st Anniversary (FRIDA, BENNY & BJÖRN)
ABBA Voyage 2nd Anniversary (BENNY & BJÖRN)
ABBA Voyage 3rd Anniversary (FRIDA & BENNY)

YouTube links c/o ABBA Voyage, Helle Høeg Brask and thatheinz