Julia Louis-Dreyfus is celebrating the end of chemo. The 'Veep' star posted an Instagram video of her sons lip-syncing to Michael Jackson's "Beat It." The actress captioned the post: "My beauty boys made this for me today, my last day of chemotherapy. Pretty swell, right? Ain't they sweet?" Louis-Dreyfus has two sons, Henry and Charlie, with husband Brad Hall. The actress announced in September she had been diagnosed with breast cancer.