Run-DMC's Rev Run and his wife Justine Simmons have been together for 25 years. The hip-hop couple share the secrets to their happy marriage in their new book, Old School Love and Why It Works — and today, they're dishing out relationship advice and answering questions about marriage from our viewers.

First up, one audience member asked for advice on how to spice up her 45-year marriage. Rev and Justine had a few suggestions, including buying new lingerie (Justine's tip) and taking a trip together (Rev's recommendation). Hear all of their advice in the video above.

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