Sam headed down to music venue Under The Bridge in Fulham, London, on Wednesday night (14 May) where he joined a host of stars to celebrate the launch of Peter's album, Big Night.
Sam kept fans updated with his night, tweeting in the evening: "Off to Under The Bridge for Peter Andre's album launch!!! Should be a cracking night x."
Although attending the bash without girlfriend Tamera Foster, Sam enjoyed the night and toasted the occasion with a drink.
Peter, who performed some of his new hits with a 10-piece band, was supported at the showcase by his fiancée Emily MacDonagh.
Also in attendance was former TOWIE star Amy Childs, as well as Big Reunion stars Andrez Harriott and Jimmy Constable.
Damage singer Andrez, who arrived with his wife Wendi, also posed for a picture with Peter. He said: "Incredible night @MrPeterAndre celebrating your achievement with the Mrs @WendiHarriott. Great music, great vibes!"
911 singer Jimmy, added: "Well done on the album launch @MrPeterAndre. Sounds great. Good to see you and the family."
Big Night will see Peter head in a new musical direction, as the collection is described as a mixture of big band and soul. Peter will support Big Night with a 23-date UK tour kicking off in September.
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