Werk! Britney Spears is known for her strong and athletic body. But she wants fans to know that it’s not so easy for her to lose weight when she wants to.

On Tuesday, June 18, the performer opened up to her Instagram followers about what it’s like when she tries to slim down. “I’ve been working really hard to [lose] weight …. and for me 3 pounds is like 7 pounds it’s a lot. I don’t like doing too much cardio,” she captioned a video of her doing her favorite workout moves.

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I’ve been working really hard to loose weight …. and for me 3 pounds is like 7 pounds it’s a lot. I don’t like doing too much cardio. My body has muscle memory, cus I use it be gymnast and I can bulk up …. so I like isolated movement. The key to my workout is repetition, but that gets boring so I have a booklet I’ve made with all my favorite exercises. I usually wear headphones …. music takes me away . I know I don’t look perfect here, but I’m working on it. Hopefully one day I can give my boyfriend’s abs a run for their money !!!!

The “Toxic” singer continued, “My body has muscle memory, cus I [used to] be [a] gymnast and I can bulk up …. so I like isolated movement. The key to my workout is repetition, but that gets boring so I have a booklet I’ve made with all my favorite exercises.”

The 37-year-old star introduces the moves by saying, “Hi guys. It’s such a beautiful day, I had to come outside and do a little workout I want to share with all of you.“

She then goes through an array of exercises, including bicep curls with a resistance band, squats, tricep rows with a free weight, kettlebell movements, bridge pulses, wheel pose, high kicks and lateral leg lifts. She plays the time-lapse segments over Jennifer Lopez’s song “Booty.”

The Grammy winner seems to be in a good place after seeking mental health treatment at a wellness center in April 2019. “Her decision to seek treatment did not stem from a drug or alcohol relapse; she simply had a strong emotional reaction to the stress of her dad’s ongoing health issues and decided to be proactive about it,” a source told Us Weekly at the time.

Spears ended her Instagram caption by saying she was working on a six-pack, in part inspired by her boyfriend, model Sam Asghari. “I usually wear headphones …. music takes me away,” she explained of her sweat sessions. “I know I don’t look perfect here, but I’m working on it. Hopefully one day I can give my boyfriend’s abs a run for their money !!!!”

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