Chickenfoot and original Van Halen bassist Michael Anthony shared heartwrenching photos of his grandson Rex (R.I.P), and penned an emotional letter.

Here is what Michael wrote:

Happy Birthday to my Grandson Rex, who would have been 2 years old today. You forever changed my life in the short time you were with us!

Your Papa loves you❤️on June 22nd I will walk with my Daughter Elisha, son in law Billy, and the rest of our “Rex and the Heartbeaters” team for Children’s Hospital Los Angeles.

If you would like to donate to the hospital through me, the link is here in my bio. #lovemyfamily #walkandplayla #CHLA #missingyourex”

Here are the photos of Rex:

Click here for the source.