2010:
- Embarks on the Play On Tour which goes on to gross 37m in the US
- Her 3rd and 4th single off the Play On album are certified Platinum and Gold respectively
- Wins her 5th grammy
- Is awarded CMT Artist of the year
2011:
- Scores a 2x platinum hit with Brad Paisley
- Is nominated for a Golden Globe for the Narnia soundtrack song "There's a place for us"
- Stars in the movie Soul Surfer
2012:
- Releases Blown Away which debuts at #1 and goes on to sell 1.7m copies
- Releases 3 singles off the BA album; certified 2x, 3x, and Platinum respectively
- Scores her biggest hit since Before He Cheats
- Embarks on the Blown Away tour which visits UK/Ireland and Australia; brings in over 50m and has a completely sold out second leg
- Again awarded CMT Artist of the year
2013:
- 4th single from Blown Away is also certified platinum
- Stars in The Sound of Music Live! which scores a massive 18.6m viewership
- Releases a live concert dvd which is certified gold
- Wins her 6th grammy
2014:
- Releases yet another platinum certified hit, Something In The Water
- Releases her Greatest Hits CD which is about to be certified platinum
- Releases a second single off her Greatest Hits; is certified gold and nominated for a grammy
- Features on Miranda Lambert's "Something Bad" which goes on to be certified platinum
- Wins the Billboard Music Award's Milestone Award
2015:
- Wins her 7th grammy
- Releases her 5th album which debuts at #2 on the overall chart and #1 on the country chart, making her the first country artist in history to have their first 5 albums debut in the top 2
- Wins her 9th (!!!) CMT award this decade; 14th overall which makes her the top awarded artist ever at the show
- Hosts the CMAs with Brad Paisley for like the 7th or 8th year in a row
as you can see, Carrie eclipses Kelly success wise in the US this decade (and without adding stuff like "gave an acclaimed performance"

). Not to diminish Kelly's achievements, but no way has she been more successful this decade