Revelation 14:1 And I looked, and, lo, a Lamb stood on the mount Zion, and with him an hundred forty and four thousand, having his Father’s name written in their foreheads.
2 And I heard a voice from heaven, as the voice of many waters, and as the voice of a great thunder: and I heard the voice of harpers harping with their harps:
3 And they sung as it were a new song before the throne, and before the four beasts, and the elders: and no man could learn that song but the hundred and forty and four thousand, which were redeemed from the earth.
4 These are they which were not defiled with women; for they are virgins. These are they which follow the Lamb whithersoever he goeth. These were redeemed from among men, being the firstfruits unto God and to the Lamb.
5 And in their mouth was found no guile: for they are without fault before the throne of God.

Now we see The lamb of God in Heaven with another 144000 that were redeemed from the earth. It is believed this is a different 144000 than ones from the 12 tribes of Israel Because they have the Fathers name written in their foreheads instead of being sealed by God. Also the scripture tells us theses were redeemed from among men of the world. This could include men from all time before the rapture until the rapture.These men were also pure in every fashion with no guile in their mouth. They came singing a new song before all the elders and beast in Heaven. They also had the orchestra of Heaven playing for them. They also will follow the Lamb wherever He goes. All of this is getting ready for the last 3 & 1/2 years of the tribulation.