The Rixton band member said his resolution was to drink nothing but water for an entire year, and he followed through.
Even his bandmates did not believe him as they said, "no you're lieing!"
He assured ET's Rosalyn Oshmyansky, "No I promise you."
The Dancing with The Stars dancer has only kept a resolution for about 15 to 20 days before. She made a valid argument for the concept, "I decided that if I wasn't able to do something like this before then the resolution should be different. A resolution should not be like 'I will not eat meat' or 'I will work out everyday.' If you have not done it for the last 40 years, you’re probably not going to do it," she said.
This year though, she promised to follow through on one. "My resolution is if I can call people back instead of texting them back, I want to do that. I want to take more initiative for better communication."
She explained, "A lot of times I will literally text 'Y' or 'N' as an answer. So now I will stop doing that. I will not use abbreviations! 'OMG' will not be in my texts."
"I had a goal last year to be more patient, and I wrote it on my mirror every morning and I would try and remember, but obviously sometimes I wouldn't be, but just having that littler reminder either on your mirror on a note on your car or something will help."
"I think I'm more patient now, and Dancing with The Stars helped me with that too," she said. "I mean teaching someone who had no idea about dance takes a lot of patience and I think I definitely learned that through Dancing with the Stars too. I think I followed through."
The 17-year-old "Shower" singer kept the resolution she made to stay fit.
She said she credits working out with her personal trainer for that one!
The "Boom Clap" singer was honest. "I have never kept a New Year's resolution, ever. I never keep them."
The Real Housewife of Beverly Hills always makes the same resolution. "It's always eat healthier, exercise more but it just never happens."
She said, "I always have a New Year's resolution, but I've never kept one. Not ever."
Javid from Shahs of Sunset has kept the same resolutions since she was 16-years-old.
She said, "It's really fun to see how little I've changed over the years. It's the same thing. Look good, love, exercise more, file your tax returns."
This year, she remains committed to the same ones saying, "I will follow through!"
Rodriguez said she keeps her resolutions "all the time," but she does not make one just for New Year's.
The Jane The Virgin star said, "I make them as I go in life because I think that if you hold yourself to that one day, and if you fail, there’s an attitude of 'I can never do this again,' but it's a process."
For this year, she explained, "All year long I’m going to keep working on myself, because that's longevity. I'm going to work on myself in 2015, all the time."
Here's to 2015!
Watch Taylor Swift and Ryan Seacrest "kiss" in this New Year's Eve promo!