The latest stop on Jennifer Lopez's world tour is in Stockholm, Sweden, and she used her day off to explore the city and hang out with beau Casper Smart. J. Lo is set to perform at the Globe tonight, and after that she'll move on to Finland and Russia. Hopefully she packed plenty of warm clothes ... we have a feeling her skimpy concert wardrobe isn't gonna cover it!

In other news, J. Lo and Casper recently celebrated their one-year anniversary! The 43-year-old singer/actress tweeted at her man late last month, "@BEAUcasperSMART BEAR!!!!!!!!!!!!!! Today is OUR's!! Thank you for sharing your beautiful smile with me everyday! ?#SpecialDay #LOVE!" Casper replied, "Happy 1 yr. anniversary to the most Gorgeous, Kind, Sweet, Funny, Beautiful Lil Bear in the world.... Love Bear." Awww!