black knit sweater dress Alison Sheri Sleeveless – Chic Midi Black / XL The Lulus Adoring Me Black Ribbed Long Sleeve Midi Sweater Dress will have you feeling confident and looking gorgeous Black Ribbed Long Sleeve Midi

From classic to contemporary, the options are endless

When shopping, "bringing along a trusted companionlike a close friend or even the bride and the bride's mothercan be incredibly helpful," Platt says

Just never make the mistake of wearing any other color pants than black for a black-tie event

Striped cotton bowtie by High Cotton

Though the loved-up couple have been spotted attending opulent events together over the past few months, this is the first time theyve ever walked the red carpet together and posed for a selection of professional snaps

Garment Breakdown: Jacket: Dark or mid-tone suit jacket in navy, charcoal, or rich jewel tones