Conversation so far:
When did Move Live On Tour start?
On March 18, 2014, Hough and her brother Derek announced a summer tour of over 40 cities across the U.S. and Canada, called Move Live on Tour“.
Where did the Move Live On Tour perform?
Julianne Hough and her brother Derek announced a summer tour of over 40 cities across the U.S. and Canada, called Move Live on Tour, which would include dancing and singing.
Where else did the Move Live On Tour perform besides 40 cities across the US and Canada?
Julianne Hough embarked on the sold-out tour on May 25, 2014, in Park City, Kansas, and ended it in Los Angeles on July 26, 2014.
Who did Julianne Hough perform with on the tour?
Julianne Hough and her brother Derek announced a summer tour which would include dancing and singing from both of them.

Question: Who else did Hough perform with?
Self-contained rewrite: Who else did Julianne Hough perform with besides her brother Derek?