Simplify the following text for a Grade 11 native English-speaking person.
Original: In August 2006 , Nickel Creek announced via Billboard Magazine and their official website that at the end of the year they would no longer be recording together as a group , and their tour scheduled through 2007 would be their last for an indefinite period of time .
Simplified: In August 2006 , Nickel Creek announced in Billboard and on their official website that they would take an indefinite hiatus , which means a break for an unknown amount of time .