( CNN ) -- Country music star Carrie Underwood and husband Mike Fisher took to Twitter Monday to make an announcement : They are expecting their first child . In a riddle of sorts , Underwood tweeted a picture of herself holding her two dogs , with the dogs sporting T-shirts that read `` I 'm going to be a big brother '' on one and `` big sister '' on the other . The tweet reads `` In honor of 'Labor ' Day ... Ace & Penny would like to make an announcement . Their parents could n't be happier ! `` Her husband , Mike Fisher , an NHL player , tweeted more directly : `` We have n't picked names yet , but it 's looking like Fly is gon na fly . '' The 31-year old Underwood was American Idol Champion in 2004 and has been releasing hits ever since . In June the platinum-selling singer took home a CMT Music Award for video of the year , for her hit `` See You Again . '' It was the fifth time Underwood snagged the award and her third win in a row .
Carrie Fisher used social media to announce she 's pregnant . The country music industry believes she made the announcement to honor ` ` labor '' day . Her husband Mike Fisher suggests the name Fly on Mars .