Grumpy Cat -- one of the most beloved viral pets online --has died at age 7, and the internet will never be the same.Grumpy's humans posted the news on social media Friday morning, and fans of the the unimpressed-looking feline, whose real name is Tardar Sauce, have been paying tribute ever since.As internet lovers remember the joy this cat's grumpy little face brought to their lives, Mashable decided to dive into the archives and reminisce on all the memories we shared with Grumpy Cat over the years. There are A LOT.Here are 10 times Grumpy Cat was gloriously and unapologetically grumpy. 1. The time she did the "Harlem Shake" (almost) 2. The time she wore a stylish wigSlay, girl.Image: Live Box Photography / mashable 3. The time she met Oscar the GrouchA grouch and a grump.Image: mashable 4. The time she ran the townImage: Live Box Photography / mashable 5. The time she auditioned to replace David Letterman 6. The time she tried to be a hipster"Get me my book" - Grumpy Cat, probablyImage: Live Box Photography / mashable 7. The time she gave off some serious Star Wars vibesImage: Live Box Photography / mashable 8. The time she ~~celebrated~~ hated Valentine's Day 9. The time when... mustacheHmm'Image: Live Box Photography / mashable 10. The time when she tolerated the holiday season. Barely.Wrapping' No thanks.Image: mashableThis is fine.Image: mashableWe'll miss you dearly, Grumpy Cat. Thanks for making the internet a better place. Click here to read full news..