The couple reportedly celebrated their impending nuptials by throwing an intimate bash with their closest family and friends at The Carondelet House in Los Angeles last Friday (14.03.14).
According to US Weekly, Amber wore a white silk spaghetti strap dress which onlookers described as “vintage dressy”, while Johnny sported a casual black suit and matching top hat.
Once inside the venue the happy couple indulged on a variety of foods, whilst guests danced to old rock songs such as ‘Wild Thing’ by The Troggs, ‘Tutti Fruti’ by Little Richard and ‘Jailhouse Rock’ by Elvis.
Johnny – who also has 14-year-old daughter Lily-Rose – was supported by his 11-year-old son Jack who attended with the actor’s ex partner Vanessa Paradis.
Meanwhile, Aerosmith frontman Steven Tyler revealed the couple looked loved up during the party which was attended by the likes of Marilyn Manson, Mandy Moore and ‘Pirates of the Caribbean’ producer Jerry Bruckheimer.
Upon leaving the bash Steve told TMZ.com: “I love that [Johnny’s] in love… we were all dancing and it was beautiful… Johnny’s mum [Betty] is the most beautiful woman.”
Johnny reportedly popped the question to Amber back in January after nearly two years of dating.