Sheryl Crow feels motherhood has put everything in her life ''into perspective.''

The 'First Cut is the Deepest' hitmaker - who has adopted sons Wyatt, six, and Levi, three - admits being a working mother is ''hard'' and she will have to stop taking her kids on the road now her eldest child is starting school.

She said: ''It's the biggest thing [being a mother]. It has put everything else into perspective.

''This year has been a lot of hard work and I've driven my kids all over the place.

''But as my six year old enters first grade, all of that will be a thing of the past.''

The 51-year-old musician has loved having her children on tour with her because she misses them too much being away from home.

She explained to Classic Rock magazine: ''My kids are at a great age, and they're so malleable and like being on a tour bus and sleeping in their bunks.

''It has made it a lot more fun for me, because it's hard being on the road away from the people that you love.

''So being able to bring them with me has made it so much more worthwhile.''