1.Snooki's first tweet:

Snooki's most recent tweet:

2.Stephen Colbert's first tweet:

Stephen Colbert's most recent tweet:

3.Taylor Swift's first tweet ever:

Taylor Swift's most recent tweet:

4.Shaq's first tweet ever:

Shaq's most recent tweet:

5.50 Cent's first ever tweet:

50 Cent's most recent tweet:

6.Lady Gaga's first tweet:

Lady Gaga's most recent tweet:

7.Neil Patrick Harris's first tweet:

Neil Patrick Harris' most recent tweet:

8.Ryan Seacrest's first tweet:

Ryan Seacrest's most recent tweet:

9.Katy Perry's first tweet:

Katy Perry's most recent tweet:

10.Conan O'Brien's first tweet:

Conan O'Brien's most recent tweet:

11.Oprah's first tweet:

Oprah's most recent tweet:

12.Jesse Tyler Ferguson's first tweet:

Jesse Tyler Ferguson's most recent tweet:

13.Ariana Grande's first tweet:

Ariana Grande's most recent tweet:

14.Kris Jenner's first tweet:

Kris Jenner's most recent tweet:

15.Kourtney Kardashian's first tweet:

Kourtney Kardashian's most recent tweet:

16.Khloé Kardashian's first tweet:

Khloé Kardashian's most recent tweet:

17.Kim Kardashian's first tweet:

Kim Kardashian's most recent tweet:

18.Kylie Jenner's first tweet:

Kylie Jenner's most recent tweet:

19.Elizabeth Taylor's first tweet:

Elizabeth Taylor's most recent tweet:

20.Kesha's first tweet:

Kesha's most recent tweet:

21.Russell Simmons' first tweet:

Russell Simmons' most recent tweet:

22.Pink's first tweet:

Pink's most recent tweet:

23.Ben Stiller's first tweet:

Ben Stiller's most recent tweet:

24.Barbara Walters' first tweet:

Barbara Walters' most recent tweet:

25.Reba's first tweet:

Reba's most recent tweet:

26.Selena Gomez's first tweet:

Selena Gomez's most recent tweet:

27.Gigi Hadid's first tweet:

Gigi Hadid's most recent tweet:

28.Justin Bieber's first tweet:

Justin Bieber's most recent tweet:

29.Ludacris's first tweet:

Ludacris's most recent tweet:

30.John Stamos's first tweet:

John Stamos's most recent tweet:

31.Zooey Deschanel's first tweet:

Zooey Deschanel's most recent tweet:

32.Danny DeVito's first tweet:

Danny DeVito's most recent tweet:

33.Lindsay Lohan's first tweet:

Lindsay Lohan's most recent tweet:

34.Jessica Simpson's first tweet:

Jessica Simpson's most recent tweet:

35.Sarah Palin's first tweet:

Sarah Palin's most recent tweet:

36.Kanye West's first tweet:

Kanye West's most recent tweet:

37.Charlie Sheen's first tweet:

Charlie Sheen's most recent tweet:

38.Alec Baldwin's first tweet:

Alec Baldwin's most recent tweet:

39.Samuel L. Jackson's first tweet:

(One of) Samuel L. Jackson's most recent tweets: