They join fellow semi-finalists Jaz Ellington, Tyler James, Leanne Mitchell and Ruth Brown.
An arena concert featuring acts from the show will take place in the autumn, starting from September in Bournemouth.
On this weekend's results show, both Bo and Vince topped the public vote in their respective teams, winning themselves a spot in the semi-finals and a place on the tour line up.
Becky and Max were both saved by their coaches, also securing their spots in the next round and the tour.
Next weekend all eight of the semi-finalists from the four teams will sing together for the first time, with just one act going through to the final.
The Voice UK live tour will feature the winner and fellow Top 7 finalists.
Tickets are on sale now.
For tickets go to www.ticketmaster.co.uk / www.livenation.co.uk or call 0844 576 5483. Tickets priced from £35.