Stars send Memorial Day messages thanking troops

Memorial Day may be spent having beach parties and barbecues, but many also take time to remember the reason for this national holiday.

A number of celebrities -- Justin Timberlake, Channing Tatum, Mark Wahlberg and Eva Longoria among them -- took to social media on Monday to thank the men and women who've served in the armed forces.

Read on to see how they paid tribute: